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<li class="md-tabs__item md-tabs__item--active">
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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<li class="md-tabs__item">
|
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<a href="../../../../Nixpkgs/" class="md-tabs__link">
|
|||
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|
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|
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|
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|
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Nixpkgs
|
|||
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|
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|
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|
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|
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|
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</nav>
|
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|
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|
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|
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|
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<main class="md-main" data-md-component="main">
|
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<div class="md-main__inner md-grid">
|
|||
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|
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|
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|
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|
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<div class="md-sidebar md-sidebar--primary" data-md-component="sidebar" data-md-type="navigation" >
|
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|
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<div class="md-sidebar__scrollwrap">
|
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<div class="md-sidebar__inner">
|
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|
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|
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|
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|
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|
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|
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<nav class="md-nav md-nav--primary md-nav--lifted" aria-label="Navigation" data-md-level="0">
|
|||
|
|
<label class="md-nav__title" for="__drawer">
|
|||
|
|
<a href="../../../.." title="Aux Docs" class="md-nav__button md-logo" aria-label="Aux Docs" data-md-component="logo">
|
|||
|
|
|
|||
|
|
<img src="../../../../assets/aux-logo.svg" alt="logo">
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
Aux Docs
|
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|
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</label>
|
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|
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|
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<div class="md-nav__source">
|
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|
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<a href="https://git.auxolotl.org/auxolotl/docs" title="Go to repository" class="md-source" data-md-component="source">
|
|||
|
|
<div class="md-source__icon md-icon">
|
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|
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|
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<svg xmlns="http://www.w3.org/2000/svg" viewBox="0 0 24 24"><path d="M16.777 0a2.9 2.9 0 1 1-2.529 4.322H12.91a4.266 4.266 0 0 0-4.265 4.195v2.118a7.076 7.076 0 0 1 4.147-1.42l.118-.002h1.338a2.9 2.9 0 0 1 5.43 1.422 2.9 2.9 0 0 1-5.43 1.422H12.91a4.266 4.266 0 0 0-4.265 4.195v2.319A2.9 2.9 0 0 1 7.222 24 2.9 2.9 0 0 1 5.8 18.57V8.589a7.109 7.109 0 0 1 6.991-7.108l.118-.001h1.338A2.9 2.9 0 0 1 16.778 0ZM7.223 19.905a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Zm9.554-10.464a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.39Zm0-7.735a1.194 1.194 0 1 0 0 2.389 1.194 1.194 0 0 0 0-2.389Z"/></svg>
|
|||
|
|
</div>
|
|||
|
|
<div class="md-source__repository">
|
|||
|
|
auxolotl/docs
|
|||
|
|
</div>
|
|||
|
|
</a>
|
|||
|
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</div>
|
|||
|
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|
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|
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<ul class="md-nav__list" data-md-scrollfix>
|
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|
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|
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|
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|
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|
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|
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<a href="../../../.." class="md-nav__link">
|
|||
|
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|
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|
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|
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|
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<span class="md-ellipsis">
|
|||
|
|
Aux Documentation Hub
|
|||
|
|
</span>
|
|||
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|
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|
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|
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|
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|
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|
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<a href="../../../../TODO/" class="md-nav__link">
|
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|
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|
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|
|
<span class="md-ellipsis">
|
|||
|
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TODO
|
|||
|
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</span>
|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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<a href="../../../../Aux/" class="md-nav__link">
|
|||
|
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|
|||
|
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|
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|
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<span class="md-ellipsis">
|
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|
|
Aux
|
|||
|
|
</span>
|
|||
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|
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|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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|
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|
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|
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4" checked>
|
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|
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|
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|
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<div class="md-nav__link md-nav__container">
|
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<a href="../../../" class="md-nav__link ">
|
|||
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|
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|
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|
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<span class="md-ellipsis">
|
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Lix
|
|||
|
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</span>
|
|||
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|
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|
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|
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</a>
|
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|
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|
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<label class="md-nav__link " for="__nav_4" id="__nav_4_label" tabindex="">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
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|
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</label>
|
|||
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|
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|
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</div>
|
|||
|
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|
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|
|
<nav class="md-nav" data-md-level="1" aria-labelledby="__nav_4_label" aria-expanded="true">
|
|||
|
|
<label class="md-nav__title" for="__nav_4">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Lix
|
|||
|
|
</label>
|
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|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|||
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|
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|
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|
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|
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<li class="md-nav__item">
|
|||
|
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<a href="../../../glossary/" class="md-nav__link">
|
|||
|
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|
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|
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|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Glossary
|
|||
|
|
</span>
|
|||
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|
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|
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|
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</a>
|
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|
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|
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|
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<li class="md-nav__item">
|
|||
|
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<a href="../../../quick-start/" class="md-nav__link">
|
|||
|
|
|
|||
|
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|
|||
|
|
<span class="md-ellipsis">
|
|||
|
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Quick Start
|
|||
|
|
</span>
|
|||
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|
|||
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|
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|
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</a>
|
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|
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|
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|
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|
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|
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|
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|
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<a href="../../../Advanced-Topics/" class="md-nav__link">
|
|||
|
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|
|||
|
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|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Advanced Topics
|
|||
|
|
</span>
|
|||
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|
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|
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|
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<span class="md-nav__icon md-icon"></span>
|
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|
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|
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|
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|
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|
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<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_5" checked>
|
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|
|||
|
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|
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|
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|
|||
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<div class="md-nav__link md-nav__container">
|
|||
|
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<a href="../../" class="md-nav__link ">
|
|||
|
|
|
|||
|
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|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Command Reference
|
|||
|
|
</span>
|
|||
|
|
|
|||
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|
|
|||
|
|
</a>
|
|||
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|
|||
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|
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|
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<label class="md-nav__link " for="__nav_4_5" id="__nav_4_5_label" tabindex="0">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
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|
|
</label>
|
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|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" data-md-level="2" aria-labelledby="__nav_4_5_label" aria-expanded="true">
|
|||
|
|
<label class="md-nav__title" for="__nav_4_5">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Command Reference
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|||
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|
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|
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|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../conf-file/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix.conf
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../env-common/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Environment Variables
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../experimental-commands/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Experimental Commands
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../main-commands/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Main Commands
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-build/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-build
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-channel/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-channel
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-collect-garbage/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-collect-garbage
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-copy-closure/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-copy-closure
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-daemon/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-daemon
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-hash/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-hash
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-instantiate/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-instantiate
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-prefetch-url/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-prefetch-url
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../nix-shell/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-shell
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../opt-common/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Options
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../../utilities/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Utilities
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
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|
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|
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|
|||
|
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|
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|
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|
|||
|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
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|
|||
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|
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../New-CLI/nix/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
New CLI
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
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|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../files/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Files
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--active md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<input class="md-nav__toggle md-toggle " type="checkbox" id="__nav_4_5_19" checked>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="md-nav__link md-nav__container">
|
|||
|
|
<a href="../" class="md-nav__link ">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nix env
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__link " for="__nav_4_5_19" id="__nav_4_5_19_label" tabindex="0">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
</label>
|
|||
|
|
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" data-md-level="3" aria-labelledby="__nav_4_5_19_label" aria-expanded="true">
|
|||
|
|
<label class="md-nav__title" for="__nav_4_5_19">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Nix env
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-scrollfix>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--active">
|
|||
|
|
|
|||
|
|
<input class="md-nav__toggle md-toggle" type="checkbox" id="__toc">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__link md-nav__link--active" for="__toc">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --delete-generations
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
</label>
|
|||
|
|
|
|||
|
|
<a href="./" class="md-nav__link md-nav__link--active">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --delete-generations
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__title" for="__toc">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Table of contents
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#synopsis" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Synopsis
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#description" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Description
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#options" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Options
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#common-options" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Options
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#environment-variables" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Environment variables
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#common-environment-variables" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Environment Variables
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Common Environment Variables">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#xdg-base-directories" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
XDG Base Directories
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#examples" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Examples
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Examples">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#delete-explicit-generation-numbers" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Delete explicit generation numbers
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#keep-most-recent-by-count-number-of-generations" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Keep most-recent by count (number of generations)
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#keep-most-recent-by-time-number-of-days" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Keep most-recent by time (number of days)
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#delete-all-older" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Delete all older
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../install/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --install
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../list-generations/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --list-generations
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../query/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --query
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../rollback/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --rollback
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../set-flag/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --set-flag
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../set/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --set
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../switch-generation/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --switch-generation
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../switch-profile/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --switch-profile
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../uninstall/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --uninstall
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="../upgrade/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
nix-env --upgrade
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
</li>
|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
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|
|||
|
|
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|
|||
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|
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|
|||
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|
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|
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|
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|
|||
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|
|||
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|
|||
|
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|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../nix-store/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nix store
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../Package-Management/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Package Management
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../architecture/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Architecture
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../contributing/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Contributing
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../installation/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Installation
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../language/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Language
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<a href="../../../protocols/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Protocols
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
|||
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
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|
|||
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|
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|
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<a href="../../../release-notes/" class="md-nav__link">
|
|||
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|
|||
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|
|||
|
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<span class="md-ellipsis">
|
|||
|
|
Release notes
|
|||
|
|
</span>
|
|||
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|
|||
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|
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|
|||
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<span class="md-nav__icon md-icon"></span>
|
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</a>
|
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|
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</ul>
|
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</nav>
|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
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|
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|
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|
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|
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|
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|
|
<a href="../../../../NixOS/appstream/" class="md-nav__link">
|
|||
|
|
|
|||
|
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|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
NixOS
|
|||
|
|
</span>
|
|||
|
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|
|||
|
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|
|||
|
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|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
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|
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</a>
|
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|
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|
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|
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<li class="md-nav__item md-nav__item--pruned md-nav__item--nested">
|
|||
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|
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|
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|
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|
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|
|||
|
|
<a href="../../../../Nixpkgs/" class="md-nav__link">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Nixpkgs
|
|||
|
|
</span>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
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|
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|
|
</a>
|
|||
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|
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|
|||
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|
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|
|
</li>
|
|||
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|
|||
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|
|||
|
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|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="md-sidebar md-sidebar--secondary" data-md-component="sidebar" data-md-type="toc" >
|
|||
|
|
<div class="md-sidebar__scrollwrap">
|
|||
|
|
<div class="md-sidebar__inner">
|
|||
|
|
|
|||
|
|
|
|||
|
|
<nav class="md-nav md-nav--secondary" aria-label="Table of contents">
|
|||
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|
|||
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|
|||
|
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|
|||
|
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|
|||
|
|
|
|||
|
|
|
|||
|
|
<label class="md-nav__title" for="__toc">
|
|||
|
|
<span class="md-nav__icon md-icon"></span>
|
|||
|
|
Table of contents
|
|||
|
|
</label>
|
|||
|
|
<ul class="md-nav__list" data-md-component="toc" data-md-scrollfix>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#synopsis" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Synopsis
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#description" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Description
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#options" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Options
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#common-options" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Options
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#environment-variables" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Environment variables
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#common-environment-variables" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Common Environment Variables
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Common Environment Variables">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#xdg-base-directories" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
XDG Base Directories
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#examples" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Examples
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
<nav class="md-nav" aria-label="Examples">
|
|||
|
|
<ul class="md-nav__list">
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#delete-explicit-generation-numbers" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Delete explicit generation numbers
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#keep-most-recent-by-count-number-of-generations" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Keep most-recent by count (number of generations)
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#keep-most-recent-by-time-number-of-days" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Keep most-recent by time (number of days)
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
<li class="md-nav__item">
|
|||
|
|
<a href="#delete-all-older" class="md-nav__link">
|
|||
|
|
<span class="md-ellipsis">
|
|||
|
|
Delete all older
|
|||
|
|
</span>
|
|||
|
|
</a>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
</nav>
|
|||
|
|
|
|||
|
|
</li>
|
|||
|
|
|
|||
|
|
</ul>
|
|||
|
|
|
|||
|
|
</nav>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
</div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<div class="md-content" data-md-component="content">
|
|||
|
|
<article class="md-content__inner md-typeset">
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
<h1 id="nix-env-delete-generations"><code>nix-env --delete-generations</code></h1>
|
|||
|
|
<p>Delete profile generations.</p>
|
|||
|
|
<h2 id="synopsis">Synopsis</h2>
|
|||
|
|
<p><code>nix-env</code> <code>--delete-generations</code> <em>generations</em></p>
|
|||
|
|
<h2 id="description">Description</h2>
|
|||
|
|
<p>This operation deletes the specified generations of the current profile.</p>
|
|||
|
|
<p><em>generations</em> can be a one of the following:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="generations-list"><code><number>...</code></span>:
|
|||
|
|
A list of generation numbers, each one a separate command-line argument.</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Delete exactly the profile generations given by their generation number.
|
|||
|
|
Deleting the current generation is not allowed.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>The special value <span id="generations-old"><code>old</code></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Delete all generations except the current one.</p>
|
|||
|
|
<blockquote>
|
|||
|
|
<p><strong>WARNING</strong></p>
|
|||
|
|
<p>Older <em>and newer</em> generations will be deleted by this operation.</p>
|
|||
|
|
<p>One might expect this to just delete older generations than the curent one, but that is only true if the current generation is also the latest.
|
|||
|
|
Because one can roll back to a previous generation, it is possible to have generations newer than the current one.
|
|||
|
|
They will also be deleted.</p>
|
|||
|
|
</blockquote>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="generations-time"><code><number>d</code></span>:
|
|||
|
|
The last <em>number</em> days</li>
|
|||
|
|
</ul>
|
|||
|
|
<p><em>Example</em>: <code>30d</code></p>
|
|||
|
|
<p>Delete all generations created more than <em>number</em> days ago, except the most recent one of them.
|
|||
|
|
This allows rolling back to generations that were available within the specified period.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="generations-count"><code>+<number></code></span>:
|
|||
|
|
The last <em>number</em> generations up to the present</li>
|
|||
|
|
</ul>
|
|||
|
|
<p><em>Example</em>: <code>+5</code></p>
|
|||
|
|
<p>Keep the last <em>number</em> generations, along with any newer than current.</p>
|
|||
|
|
<p>Periodically deleting old generations is important to make garbage collection
|
|||
|
|
effective.
|
|||
|
|
The is because profiles are also garbage collection roots — any <a href="../../../glossary/#gloss-store-object">store object</a> reachable from a profile is "alive" and ineligible for deletion.</p>
|
|||
|
|
<h2 id="options">Options</h2>
|
|||
|
|
<p>The following options are allowed for all <code>nix-env</code> operations, but may not always have an effect.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p><code>--file</code> / <code>-f</code> <em>path</em>
|
|||
|
|
Specifies the Nix expression (designated below as the <em>active Nix
|
|||
|
|
expression</em>) used by the <code>--install</code>, <code>--upgrade</code>, and <code>--query
|
|||
|
|
--available</code> operations to obtain derivations. The default is
|
|||
|
|
<code>~/.nix-defexpr</code>.</p>
|
|||
|
|
<p>If the argument starts with <code>http://</code> or <code>https://</code>, it is
|
|||
|
|
interpreted as the URL of a tarball that will be downloaded and
|
|||
|
|
unpacked to a temporary location. The tarball must include a single
|
|||
|
|
top-level directory containing at least a file named <code>default.nix</code>.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>--profile</code> / <code>-p</code> <em>path</em>
|
|||
|
|
Specifies the profile to be used by those operations that operate on
|
|||
|
|
a profile (designated below as the <em>active profile</em>). A profile is a
|
|||
|
|
sequence of user environments called <em>generations</em>, one of which is
|
|||
|
|
the <em>current generation</em>.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>--dry-run</code>
|
|||
|
|
For the <code>--install</code>, <code>--upgrade</code>, <code>--uninstall</code>,
|
|||
|
|
<code>--switch-generation</code>, <code>--delete-generations</code> and <code>--rollback</code>
|
|||
|
|
operations, this flag will cause <code>nix-env</code> to print what <em>would</em> be
|
|||
|
|
done if this flag had not been specified, without actually doing it.</p>
|
|||
|
|
<p><code>--dry-run</code> also prints out which paths will be
|
|||
|
|
<a href="../../../glossary/">substituted</a> (i.e., downloaded) and which paths
|
|||
|
|
will be built from source (because no substitute is available).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>--system-filter</code> <em>system</em>
|
|||
|
|
By default, operations such as <code>--query
|
|||
|
|
--available</code> show derivations matching any platform. This option
|
|||
|
|
allows you to use derivations for the specified platform <em>system</em>.</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<h2 id="common-options">Common Options</h2>
|
|||
|
|
<p>Most commands in Lix accept the following command-line options:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-help"><a href="#opt-help"><code>--help</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Prints out a summary of the command syntax and exits.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-version"><a href="#opt-version"><code>--version</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Prints out the Lix version number on standard output and exits.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-verbose"><a href="#opt-verbose"><code>--verbose</code></a></span> / <code>-v</code></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Increases the level of verbosity of diagnostic messages printed on standard error.
|
|||
|
|
For each Lix operation, the information printed on standard output is well-defined;
|
|||
|
|
any diagnostic information is printed on standard error, never on standard output.</p>
|
|||
|
|
<p>This option may be specified repeatedly.
|
|||
|
|
Currently, the following verbosity levels exist:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p><code>0</code> “Errors only”</p>
|
|||
|
|
<p>Only print messages explaining why the Lix invocation failed.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>1</code> “Informational”</p>
|
|||
|
|
<p>Print <em>useful</em> messages about what Lix is doing.
|
|||
|
|
This is the default.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>2</code> “Talkative”</p>
|
|||
|
|
<p>Print more informational messages.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>3</code> “Chatty”</p>
|
|||
|
|
<p>Print even more informational messages.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>4</code> “Debug”</p>
|
|||
|
|
<p>Print debug information.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>5</code> “Vomit”</p>
|
|||
|
|
<p>Print vast amounts of debug information.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="opt-quiet"><a href="#opt-quiet"><code>--quiet</code></a></span></p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Decreases the level of verbosity of diagnostic messages printed on standard error.
|
|||
|
|
This is the inverse option to <code>-v</code> / <code>--verbose</code>.</p>
|
|||
|
|
<p>This option may be specified repeatedly.
|
|||
|
|
See the previous verbosity levels list.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-log-format"><a href="#opt-log-format"><code>--log-format</code></a></span> <em>format</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option can be used to change the output of the log format, with <em>format</em> being one of:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p><code>raw</code></p>
|
|||
|
|
<p>This is the raw format, as outputted by nix-build.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>internal-json</code></p>
|
|||
|
|
<p>Outputs the logs in a structured manner.</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>While the schema itself is relatively stable, the format of
|
|||
|
|
the error-messages (namely of the <code>msg</code>-field) can change
|
|||
|
|
between releases.</p>
|
|||
|
|
</div>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p><code>bar</code></p>
|
|||
|
|
<p>Only display a progress bar during the builds.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><code>bar-with-logs</code></p>
|
|||
|
|
<p>Display the raw logs, with the progress bar at the bottom.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="opt-no-build-output"><a href="#opt-no-build-output"><code>--no-build-output</code></a></span> / <code>-Q</code></p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<p>By default, output written by builders to standard output and standard error is echoed to the Lix command's standard error.
|
|||
|
|
This option suppresses this behaviour.
|
|||
|
|
Note that the builder's standard output and error are always written to a log file in <code>prefix/nix/var/log/nix</code>.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-max-jobs"><a href="#opt-max-jobs"><code>--max-jobs</code></a></span> / <code>-j</code> <em>number</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Sets the maximum number of build jobs that Lix will perform in parallel to the specified number.
|
|||
|
|
Specify <code>auto</code> to use the number of CPUs in the system.
|
|||
|
|
The default is specified by the <code>max-jobs</code> configuration setting, which itself defaults to <code>1</code>.
|
|||
|
|
A higher value is useful on SMP systems or to exploit I/O latency.</p>
|
|||
|
|
<p>Setting it to <code>0</code> disallows building on the local machine, which is useful when you want builds to happen only on remote builders.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-cores"><a href="#opt-cores"><code>--cores</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Sets the value of the <code>NIX_BUILD_CORES</code> environment variable in the invocation of builders.
|
|||
|
|
Builders can use this variable at their discretion to control the maximum amount of parallelism.
|
|||
|
|
For instance, in Nixpkgs, if the derivation attribute <code>enableParallelBuilding</code> is set to <code>true</code>, the builder passes the <code>-jN</code> flag to GNU Make.
|
|||
|
|
It defaults to the value of the <code>cores</code> configuration setting, if set, or <code>1</code> otherwise.
|
|||
|
|
The value <code>0</code> means that the builder should use all available CPU cores in the system.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-max-silent-time"><a href="#opt-max-silent-time"><code>--max-silent-time</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Sets the maximum number of seconds that a builder can go without producing any data on standard output or standard error.
|
|||
|
|
The default is specified by the <code>max-silent-time</code> configuration setting.
|
|||
|
|
<code>0</code> means no time-out.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-timeout"><a href="#opt-timeout"><code>--timeout</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Sets the maximum number of seconds that a builder can run.
|
|||
|
|
The default is specified by the <code>timeout</code> configuration setting.
|
|||
|
|
<code>0</code> means no timeout.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-keep-going"><a href="#opt-keep-going"><code>--keep-going</code></a></span> / <code>-k</code></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Keep going in case of failed builds, to the greatest extent possible.
|
|||
|
|
That is, if building an input of some derivation fails, Lix will still build the other inputs, but not the derivation itself.
|
|||
|
|
Without this option, Lix stops if any build fails (except for builds of substitutes), possibly killing builds in progress (in case of parallel or distributed builds).</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-keep-failed"><a href="#opt-keep-failed"><code>--keep-failed</code></a></span> / <code>-K</code></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Specifies that in case of a build failure, the temporary directory (usually in <code>/tmp</code>) in which the build takes place should not be deleted.
|
|||
|
|
The path of the build directory is printed as an informational message.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-fallback"><a href="#opt-fallback"><code>--fallback</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Whenever Lix attempts to build a derivation for which substitutes are known for each output path, but realising the output paths through the substitutes fails, fall back on building the derivation.</p>
|
|||
|
|
<p>The most common scenario in which this is useful is when we have registered substitutes in order to perform binary distribution from, say, a network repository.
|
|||
|
|
If the repository is down, the realisation of the derivation will fail.
|
|||
|
|
When this option is specified, Lix will build the derivation instead.
|
|||
|
|
Thus, installation from binaries falls back on installation from source.
|
|||
|
|
This option is not the default since it is generally not desirable for a transient failure in obtaining the substitutes to lead to a full build from source (with the related consumption of resources).</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-readonly-mode"><a href="#opt-readonly-mode"><code>--readonly-mode</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>When this option is used, no attempt is made to open the Lix database.
|
|||
|
|
Most Lix operations do need database access, so those operations will fail.</p>
|
|||
|
|
<div class="admonition warning">
|
|||
|
|
<p class="admonition-title">Warning</p>
|
|||
|
|
<p>FIXME(Lix): sometimes you want <code>--store dummy</code> instead, because this option sometimes doesn't work. Document why this is.</p>
|
|||
|
|
</div>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-arg"><a href="#opt-arg"><code>--arg</code></a></span> <em>name</em> <em>value</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option is accepted by <code>nix-env</code>, <code>nix-instantiate</code>, <code>nix-shell</code> and <code>nix-build</code>.
|
|||
|
|
When evaluating Nix expressions, the expression evaluator will automatically try to call functions that it encounters.
|
|||
|
|
It can automatically call functions for which every argument has a <a href="../../../language/constructs/#functions">default value</a> (e.g., <code>{ argName ? defaultValue }: ...</code>).</p>
|
|||
|
|
<p>With <code>--arg</code>, you can also call functions that have arguments without a default value (or override a default value).
|
|||
|
|
That is, if the evaluator encounters a function with an argument named <em>name</em>, it will call it with value <em>value</em>.</p>
|
|||
|
|
<p>For instance, the top-level <code>default.nix</code> in Nixpkgs is actually a function:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="p">{</span> <span class="c1">## The system (e.g., `i686-linux') for which to build the packages.</span>
|
|||
|
|
system <span class="o">?</span> <span class="nb">builtins</span><span class="o">.</span>currentSystem
|
|||
|
|
<span class="o">...</span>
|
|||
|
|
<span class="p">}:</span> <span class="o">...</span>
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>So if you call this Nix expression (e.g., when you do <code>nix-env --install --attr pkgname</code>), the function will be called automatically using the value <a href="../../../language/builtins/"><code>builtins.currentSystem</code></a> for the <code>system</code> argument.
|
|||
|
|
You can override this using <code>--arg</code>, e.g., <code>nix-env --install --attr pkgname --arg system "i686-freebsd"</code>.
|
|||
|
|
(Note that since the argument is a Nix string literal, you have to escape the quotes.)</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-argstr"><a href="#opt-argstr"><code>--argstr</code></a></span> <em>name</em> <em>value</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>This option is like <code>--arg</code>, only the value is not a Nix expression but a string.
|
|||
|
|
So instead of <code>--arg system "i686-linux"</code> (the outer quotes are to keep the shell happy) you can say <code>--argstr system i686-linux</code>.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-attr"><a href="#opt-attr"><code>--attr</code></a></span> / <code>-A</code> <em>attrPath</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Select an attribute from the top-level Nix expression being evaluated.
|
|||
|
|
(<code>nix-env</code>, <code>nix-instantiate</code>, <code>nix-build</code> and <code>nix-shell</code> only.)
|
|||
|
|
The <em>attribute path</em> <em>attrPath</em> is a sequence of attribute names separated by dots.
|
|||
|
|
For instance, given a top-level Nix expression <em>e</em>, the attribute path <code>xorg.xorgserver</code> would cause the expression <code>e.xorg.xorgserver</code> to be used.
|
|||
|
|
See <a href="../install/"><code>nix-env --install</code></a> for some concrete examples.</p>
|
|||
|
|
<p>In addition to attribute names, you can also specify array indices.
|
|||
|
|
For instance, the attribute path <code>foo.3.bar</code> selects the <code>bar</code>
|
|||
|
|
attribute of the fourth element of the array in the <code>foo</code> attribute
|
|||
|
|
of the top-level expression.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-expr"><a href="#opt-expr"><code>--expr</code></a></span> / <code>-E</code></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Interpret the command line arguments as a list of Nix expressions to be parsed and evaluated, rather than as a list of file names of Nix expressions.
|
|||
|
|
(<code>nix-instantiate</code>, <code>nix-build</code> and <code>nix-shell</code> only.)</p>
|
|||
|
|
<p>For <code>nix-shell</code>, this option is commonly used to give you a shell in which you can build the packages returned by the expression.
|
|||
|
|
If you want to get a shell which contain the <em>built</em> packages ready for use, give your expression to the <code>nix-shell --packages</code> convenience flag instead.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-I"><a href="#opt-I"><code>-I</code></a></span> <em>path</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Add an entry to the <a href="../../conf-file/#conf-nix-path">Nix expression search path</a>.
|
|||
|
|
This option may be given multiple times.
|
|||
|
|
Paths added through <code>-I</code> take precedence over <a href="../../env-common/#env-NIX_PATH"><code>NIX_PATH</code></a>.</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-option"><a href="#opt-option"><code>--option</code></a></span> <em>name</em> <em>value</em></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Set the Lix configuration option <em>name</em> to <em>value</em>.
|
|||
|
|
This overrides settings in the Lix configuration file (see nix.conf(5)).</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><span id="opt-repair"><a href="#opt-repair"><code>--repair</code></a></span></li>
|
|||
|
|
</ul>
|
|||
|
|
<p>Fix corrupted or missing store paths by redownloading or rebuilding them.
|
|||
|
|
Note that this is slow because it requires computing a cryptographic hash of the contents of every path in the closure of the build.
|
|||
|
|
Also note the warning under <code>nix-store --repair-path</code>.</p>
|
|||
|
|
<div class="admonition note">
|
|||
|
|
<p class="admonition-title">Note</p>
|
|||
|
|
<p>See <a href="../../conf-file/#command-line-flags"><code>man nix.conf</code></a> for overriding configuration settings with command line flags.</p>
|
|||
|
|
</div>
|
|||
|
|
<h2 id="environment-variables">Environment variables</h2>
|
|||
|
|
<ul>
|
|||
|
|
<li><code>NIX_PROFILE</code>
|
|||
|
|
Location of the Nix profile. Defaults to the target of the symlink
|
|||
|
|
<code>~/.nix-profile</code>, if it exists, or <code>/nix/var/nix/profiles/default</code>
|
|||
|
|
otherwise.</li>
|
|||
|
|
</ul>
|
|||
|
|
<h2 id="common-environment-variables">Common Environment Variables</h2>
|
|||
|
|
<p>Most commands in Lix interpret the following environment variables:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-IN_NIX_SHELL"><a href="#env-IN_NIX_SHELL"><code>IN_NIX_SHELL</code></a></span>
|
|||
|
|
Indicator that tells if the current environment was set up by
|
|||
|
|
<code>nix-shell</code>. It can have the values <code>pure</code> or <code>impure</code>.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_PATH"><a href="#env-NIX_PATH"><code>NIX_PATH</code></a></span>
|
|||
|
|
A colon-separated list of directories used to look up the location of Nix
|
|||
|
|
expressions using <a href="../../../language/values/#type-path">paths</a>
|
|||
|
|
enclosed in angle brackets (i.e., <code><path></code>),
|
|||
|
|
e.g. <code>/home/eelco/Dev:/etc/nixos</code>. It can be extended using the
|
|||
|
|
<a href="../../opt-common/#opt-I"><code>-I</code> option</a>.</p>
|
|||
|
|
<p>If <code>NIX_PATH</code> is not set at all, Lix will fall back to the following list in <a href="../../conf-file/#conf-pure-eval">impure</a> and <a href="../../conf-file/#conf-restrict-eval">unrestricted</a> evaluation mode:</p>
|
|||
|
|
<ol>
|
|||
|
|
<li><code>$HOME/.nix-defexpr/channels</code></li>
|
|||
|
|
<li><code>nixpkgs=/nix/var/nix/profiles/per-user/root/channels/nixpkgs</code></li>
|
|||
|
|
<li><code>/nix/var/nix/profiles/per-user/root/channels</code></li>
|
|||
|
|
</ol>
|
|||
|
|
<p>If <code>NIX_PATH</code> is set to an empty string, resolving search paths will always fail.
|
|||
|
|
For example, attempting to use <code><nixpkgs></code> will produce:</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code>error: file 'nixpkgs' was not found in the Nix search path
|
|||
|
|
</code></pre></div>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_IGNORE_SYMLINK_STORE"><a href="#env-NIX_IGNORE_SYMLINK_STORE"><code>NIX_IGNORE_SYMLINK_STORE</code></a></span>
|
|||
|
|
Normally, the Nix store directory (typically <code>/nix/store</code>) is not
|
|||
|
|
allowed to contain any symlink components. This is to prevent
|
|||
|
|
“impure” builds. Builders sometimes “canonicalise” paths by
|
|||
|
|
resolving all symlink components. Thus, builds on different machines
|
|||
|
|
(with <code>/nix/store</code> resolving to different locations) could yield
|
|||
|
|
different results. This is generally not a problem, except when
|
|||
|
|
builds are deployed to machines where <code>/nix/store</code> resolves
|
|||
|
|
differently. If you are sure that you’re not going to do that, you
|
|||
|
|
can set <code>NIX_IGNORE_SYMLINK_STORE</code> to <code>1</code>.</p>
|
|||
|
|
<p>Note that if you’re symlinking the Nix store so that you can put it
|
|||
|
|
on another file system than the root file system, on Linux you’re
|
|||
|
|
better off using <code>bind</code> mount points, e.g.,</p>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="gp">$ </span>mkdir<span class="w"> </span>/nix
|
|||
|
|
<span class="gp">$ </span>mount<span class="w"> </span>-o<span class="w"> </span><span class="nb">bind</span><span class="w"> </span>/mnt/otherdisk/nix<span class="w"> </span>/nix
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Consult the mount 8 manual page for details.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_STORE_DIR"><a href="#env-NIX_STORE_DIR"><code>NIX_STORE_DIR</code></a></span>
|
|||
|
|
Overrides the location of the Nix store (default <code>prefix/store</code>).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_DATA_DIR"><a href="#env-NIX_DATA_DIR"><code>NIX_DATA_DIR</code></a></span>
|
|||
|
|
Overrides the location of the Lix static data directory (default
|
|||
|
|
<code>prefix/share</code>).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_LOG_DIR"><a href="#env-NIX_LOG_DIR"><code>NIX_LOG_DIR</code></a></span>
|
|||
|
|
Overrides the location of the Lix log directory (default
|
|||
|
|
<code>prefix/var/log/nix</code>).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_STATE_DIR"><a href="#env-NIX_STATE_DIR"><code>NIX_STATE_DIR</code></a></span>
|
|||
|
|
Overrides the location of the Lix state directory (default
|
|||
|
|
<code>prefix/var/nix</code>).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_CONF_DIR"><a href="#env-NIX_CONF_DIR"><code>NIX_CONF_DIR</code></a></span>
|
|||
|
|
Overrides the location of the system Lix configuration directory
|
|||
|
|
(default <code>prefix/etc/nix</code>).</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_CONFIG"><a href="#env-NIX_CONFIG"><code>NIX_CONFIG</code></a></span>
|
|||
|
|
Applies settings from Lix configuration from the environment.
|
|||
|
|
The content is treated as if it was read from a Lix configuration file.
|
|||
|
|
Settings are separated by the newline character.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_USER_CONF_FILES"><a href="#env-NIX_USER_CONF_FILES"><code>NIX_USER_CONF_FILES</code></a></span>
|
|||
|
|
Overrides the location of the Lix user configuration files to load from.</p>
|
|||
|
|
<p>The default are the locations according to the <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG Base Directory Specification</a>.
|
|||
|
|
See the <a href="#xdg-base-directories">XDG Base Directories</a> sub-section for details.</p>
|
|||
|
|
<p>The variable is treated as a list separated by the <code>:</code> token.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-TMPDIR"><a href="#env-TMPDIR"><code>TMPDIR</code></a></span>
|
|||
|
|
Use the specified directory to store temporary files. In particular,
|
|||
|
|
this includes temporary build directories; these can take up
|
|||
|
|
substantial amounts of disk space. The default is <code>/tmp</code>.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_REMOTE"><a href="#env-NIX_REMOTE"><code>NIX_REMOTE</code></a></span>
|
|||
|
|
This variable should be set to <code>daemon</code> if you want to use the Lix
|
|||
|
|
daemon to execute Nix operations. This is necessary in <a href="../../../installation/multi-user/">multi-user
|
|||
|
|
Nix installations</a>. If the Lix
|
|||
|
|
daemon's Unix socket is at some non-standard path, this variable
|
|||
|
|
should be set to <code>unix://path/to/socket</code>. Otherwise, it should be
|
|||
|
|
left unset.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_SHOW_STATS"><a href="#env-NIX_SHOW_STATS"><code>NIX_SHOW_STATS</code></a></span>
|
|||
|
|
If set to <code>1</code>, Lix will print some evaluation statistics, such as
|
|||
|
|
the number of values allocated.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-NIX_COUNT_CALLS"><a href="#env-NIX_COUNT_CALLS"><code>NIX_COUNT_CALLS</code></a></span>
|
|||
|
|
If set to <code>1</code>, Lix will print how often functions were called during
|
|||
|
|
Nix expression evaluation. This is useful for profiling your Nix
|
|||
|
|
expressions.</p>
|
|||
|
|
</li>
|
|||
|
|
<li>
|
|||
|
|
<p><span id="env-GC_INITIAL_HEAP_SIZE"><a href="#env-GC_INITIAL_HEAP_SIZE"><code>GC_INITIAL_HEAP_SIZE</code></a></span>
|
|||
|
|
If Nix has been configured to use the Boehm garbage collector, this
|
|||
|
|
variable sets the initial size of the heap in bytes. It defaults to
|
|||
|
|
384 MiB. Setting it to a low value reduces memory consumption, but
|
|||
|
|
will increase runtime due to the overhead of garbage collection.</p>
|
|||
|
|
</li>
|
|||
|
|
</ul>
|
|||
|
|
<h3 id="xdg-base-directories">XDG Base Directories</h3>
|
|||
|
|
<p>Lix follows the <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG Base Directory Specification</a>.</p>
|
|||
|
|
<p>For backwards compatibility, commands in Lix will follow the standard only when [<code>use-xdg-base-directories</code>] is enabled.
|
|||
|
|
<a href="../../New-CLI/nix/">New Nix commands</a> (experimental) conform to the standard by default.</p>
|
|||
|
|
<p>The following environment variables are used to determine locations of various state and configuration files:</p>
|
|||
|
|
<ul>
|
|||
|
|
<li><code>XDG_CONFIG_HOME</code> (default <code>~/.config</code>)</li>
|
|||
|
|
<li><code>XDG_STATE_HOME</code> (default <code>~/.local/state</code>)</li>
|
|||
|
|
<li><code>XDG_CACHE_HOME</code> (default <code>~/.cache</code>)</li>
|
|||
|
|
</ul>
|
|||
|
|
<h2 id="examples">Examples</h2>
|
|||
|
|
<h3 id="delete-explicit-generation-numbers">Delete explicit generation numbers</h3>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="gp">$ </span>nix-env<span class="w"> </span>--delete-generations<span class="w"> </span><span class="m">3</span><span class="w"> </span><span class="m">4</span><span class="w"> </span><span class="m">8</span>
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Delete the generations numbered 3, 4, and 8, so long as the current active generation is not any of those.</p>
|
|||
|
|
<h3 id="keep-most-recent-by-count-number-of-generations">Keep most-recent by count (number of generations)</h3>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="gp">$ </span>nix-env<span class="w"> </span>--delete-generations<span class="w"> </span>+5
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>Suppose <code>30</code> is the current generation, and we currently have generations numbered <code>20</code> through <code>32</code>.</p>
|
|||
|
|
<p>Then this command will delete generations <code>20</code> through <code>25</code> (<code><= 30 - 5</code>),
|
|||
|
|
and keep generations <code>26</code> through <code>31</code> (<code>> 30 - 5</code>).</p>
|
|||
|
|
<h3 id="keep-most-recent-by-time-number-of-days">Keep most-recent by time (number of days)</h3>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="gp">$ </span>nix-env<span class="w"> </span>--delete-generations<span class="w"> </span>30d
|
|||
|
|
</code></pre></div>
|
|||
|
|
<p>This command will delete all generations older than 30 days, except for the generation that was active 30 days ago (if it currently exists).</p>
|
|||
|
|
<h3 id="delete-all-older">Delete all older</h3>
|
|||
|
|
<div class="highlight"><pre><span></span><code><span class="gp">$ </span>nix-env<span class="w"> </span>--profile<span class="w"> </span>other_profile<span class="w"> </span>--delete-generations<span class="w"> </span>old
|
|||
|
|
</code></pre></div>
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
|
|||
|
|
</article>
|
|||
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</div>
|
|||
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