source: clfs-sysroot/BOOK/final-system/common/file.xml

<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
  "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../../general.ent">
  %general-entities;
]>

<sect1 id="ch-system-file" role="wrap">
  <?dbhtml filename="file.html"?>

  <title>File-&file-version;</title>

  <indexterm zone="ch-system-file">
    <primary sortas="a-File">File</primary>
  </indexterm>

  <sect2 role="package">
    <title/>

    <para>The File package contains a utility for determining the type of
    a given file or files.</para>

  </sect2>

  &env-target;

  <sect2 role="installation">
    <title>Installation of File</title>

    <para os="ap1">The following patch will fix a compile issue that would prevent
    a proper creation of the <filename>magic.mgc</filename> file. This would
    show up as an error messsage.
    <computeroutput>ERROR: file: File &file-version; supports only 6 version
    magic files. `/tools/share/file/magic.mgc' is version 2</computeroutput>:</para>

<screen os="ap2"><userinput>patch -Np1 -i ../&file-cross_compile-patch;</userinput></screen>

    <para os="a">Prepare File for compilation:</para>

<screen os="b"><userinput>./configure --build=${CLFS_HOST} --host=${CLFS_TARGET} \
    --prefix=/usr</userinput></screen>

    <para os="c">Compile the package:</para>

<screen os="d"><userinput>make</userinput></screen>

    <para os="e">Install the package:</para>

<screen os="f"><userinput>make DESTDIR=${CLFS} install</userinput></screen>

  </sect2>

  <sect2 id="contents-file" role="content">
    <title>Contents of File</title>

    <segmentedlist>
      <segtitle>Installed programs</segtitle>
      <segtitle>Installed library</segtitle>

      <seglistitem>
        <seg>file</seg>
        <seg>libmagic.[a,so]</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="file">
        <term><command>file</command></term>
        <listitem>
          <para>Tries to classify each given file; it does this by performing
          several tests&mdash;file system tests, magic number tests, and
          language tests</para>
          <indexterm zone="ch-system-file file">
            <primary sortas="b-file">file</primary>
          </indexterm>
        </listitem>
      </varlistentry>

      <varlistentry id="libmagic">
        <term><filename class="libraryfile">libmagic</filename></term>
        <listitem>
          <para>Contains routines for magic number recognition, used by the
          <command>file</command> program</para>
          <indexterm zone="ch-system-file libmagic">
            <primary sortas="c-libmagic">libmagic</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>