path: root/doc/manual/nix-pull.xml

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          xmlns:xlink="http://www.w3.org/1999/xlink"
          xmlns:xi="http://www.w3.org/2001/XInclude">

<refmeta>
  <refentrytitle>nix-pull</refentrytitle>
  <manvolnum>1</manvolnum>
  <refmiscinfo class="source">Nix</refmiscinfo>
  <refmiscinfo class="version"><xi:include href="version.txt" parse="text"/></refmiscinfo>
</refmeta>

<refnamediv>
  <refname>nix-pull</refname>
  <refpurpose>pull substitutes from a network cache</refpurpose>
</refnamediv>

<refsynopsisdiv>
  <cmdsynopsis>
    <command>nix-pull</command>
    <arg choice='plain'><replaceable>url</replaceable></arg>
  </cmdsynopsis>
</refsynopsisdiv>


<refsection><title>Description</title>

<para>The command <command>nix-pull</command> obtains a list of
pre-built store paths from the URL <replaceable>url</replaceable>, and
for each of these store paths, registers a substitute derivation that
downloads and unpacks it into the Nix store.  This is used to speed up
installations: if you attempt to install something that has already
been built and stored into the network cache, Nix can transparently
re-use the pre-built store paths.</para>

<para>The file at <replaceable>url</replaceable> must be compatible
with the files created by <replaceable>nix-push</replaceable>.</para>

</refsection>


<refsection><title>Examples</title>

<screen>
$ nix-pull http://nix.cs.uu.nl/dist/nix/nixpkgs-0.5pre753/MANIFEST</screen>

</refsection>


</refentry>