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35 lines
1.1 KiB
XML
35 lines
1.1 KiB
XML
<chapter xmlns="http://docbook.org/ns/docbook"
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xmlns:xlink="http://www.w3.org/1999/xlink"
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xmlns:xi="http://www.w3.org/2001/XInclude"
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version="5.0"
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xml:id="sec-package-management">
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<title>Package Management</title>
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<para>This section describes how to add additional packages to your
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system. NixOS has two distinct styles of package management:
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<itemizedlist>
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<listitem><para><emphasis>Declarative</emphasis>, where you declare
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what packages you want in your
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<filename>configuration.nix</filename>. Every time you run
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<command>nixos-rebuild</command>, NixOS will ensure that you get a
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consistent set of binaries corresponding to your
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specification.</para></listitem>
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<listitem><para><emphasis>Ad hoc</emphasis>, where you install,
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upgrade and uninstall packages via the <command>nix-env</command>
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command. This style allows mixing packages from different Nixpkgs
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versions. It’s the only choice for non-root
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users.</para></listitem>
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</itemizedlist>
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</para>
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<xi:include href="declarative-packages.xml" />
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<xi:include href="ad-hoc-packages.xml" />
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</chapter>
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