BOOK/chapter08/file.xml

   1 <?xml version="1.0" encoding="ISO-8859-1"?>
   2 <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
   3   "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
   4   <!ENTITY % general-entities SYSTEM "../general.ent">
   5   %general-entities;
   6 ]>
   7
   8 <sect1 id="ch-system-file" role="wrap">
   9   <?dbhtml filename="file.html"?>
  10
  11   <sect1info condition="script">
  12     <productname>file</productname>
  13     <productnumber>&file-version;</productnumber>
  14     <address>&file-url;</address>
  15   </sect1info>
  16
  17   <title>File-&file-version;</title>
  18
  19   <indexterm zone="ch-system-file">
  20     <primary sortas="a-File">File</primary>
  21   </indexterm>
  22
  23   <sect2 role="package">
  24     <title/>
  25
  26     <para>The File package contains a utility for determining the type of a given
  27     file or files.</para>
  28
  29     <segmentedlist>
  30       <segtitle>&buildtime;</segtitle>
  31       <segtitle>&diskspace;</segtitle>
  32
  33       <seglistitem>
  34         <seg>&file-fin-sbu;</seg>
  35         <seg>&file-fin-du;</seg>
  36       </seglistitem>
  37     </segmentedlist>
  38
  39   </sect2>
  40
  41   <sect2 role="installation">
  42     <title>Installation of File</title>
  43
  44     <para>Prepare File for compilation:</para>
  45
  46 <screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
  47
  48     <para>Compile the package:</para>
  49
  50 <screen><userinput remap="make">make</userinput></screen>
  51
  52     <para>To test the results, issue:</para>
  53
  54 <screen><userinput remap="test">make check</userinput></screen>
  55
  56     <para>Install the package:</para>
  57
  58 <screen><userinput remap="install">make install</userinput></screen>
  59
  60     <para><command>/bin/more</command> from util-linux will link to
  61     <filename class="libraryfile">libmagic.so</filename>, so the shared
  62     library should be moved to <filename class="directory">/lib</filename>,
  63     and as a result the
  64     <filename class="extension">.so</filename> file in
  65     <filename class="directory">/usr/lib</filename> will need to be recreated:</para>
  66
  67 <screen><userinput remap="install">mv -v /usr/lib/libmagic.so.* /lib
  68 ln -sfv ../../lib/$(readlink /usr/lib/libmagic.so) /usr/lib/libmagic.so</userinput></screen>
  69
  70   </sect2>
  71
  72
  73   <sect2 id="contents-file" role="content">
  74     <title>Contents of File</title>
  75
  76     <segmentedlist>
  77       <segtitle>Installed programs</segtitle>
  78       <segtitle>Installed library</segtitle>
  79
  80       <seglistitem>
  81         <seg>file</seg>
  82         <seg>libmagic.so</seg>
  83       </seglistitem>
  84     </segmentedlist>
  85
  86     <variablelist>
  87       <bridgehead renderas="sect3">Short Descriptions</bridgehead>
  88       <?dbfo list-presentation="list"?>
  89       <?dbhtml list-presentation="table"?>
  90
  91       <varlistentry id="file">
  92         <term><command>file</command></term>
  93         <listitem>
  94           <para>Tries to classify each given file; it does this by performing
  95           several tests&mdash;file system tests, magic number tests, and language
  96           tests</para>
  97           <indexterm zone="ch-system-file file">
  98             <primary sortas="b-file">file</primary>
  99           </indexterm>
 100         </listitem>
 101       </varlistentry>
 102
 103       <varlistentry id="libmagic">
 104         <term><filename class="libraryfile">libmagic</filename></term>
 105         <listitem>
 106           <para>Contains routines for magic number recognition, used by the
 107           <command>file</command> program</para>
 108           <indexterm zone="ch-system-file libmagic">
 109             <primary sortas="c-libmagic">libmagic</primary>
 110           </indexterm>
 111         </listitem>
 112       </varlistentry>
 113
 114     </variablelist>
 115
 116   </sect2>
 117
 118 </sect1>