lfs-book/chapter06/file.xml

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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
  <!ENTITY % general-entities SYSTEM "../general.ent">
  %general-entities;
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<sect1 id="ch-system-file" xreflabel="File">
<title>File-&file-version;</title>
<?dbhtml filename="file.html"?>

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

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

<screen>&buildtime; 0.1 SBU
&diskspace; 6.3 MB</screen>

<para>File installation depends on: Bash, Binutils, Coreutils, Diffutils,
GCC, Glibc, Grep, Make, Sed, Zlib.</para>



<sect2>
<title>Installation of File</title>

<para>Prepare File for compilation:</para>

<screen><userinput>./configure --prefix=/usr</userinput></screen> 

<para>Compile the package:</para>

<screen><userinput>make</userinput></screen>

<para>Now install it:</para>

<screen><userinput>make install</userinput></screen>

</sect2>


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

<para><emphasis>Installed program</emphasis>: file</para>

<para><emphasis>Installed library</emphasis>: libmagic.[a,so]</para>

</sect2>


<sect2><title>Short descriptions</title>

<indexterm zone="ch-system-file file"><primary sortas="b-file">file</primary></indexterm>
<para id="file"><command>file</command> tries to classify each given file. It does
this by performing several tests: file system tests, magic number tests, and
language tests. The first test that succeeds determines the result.</para>

<indexterm zone="ch-system-file libmagic"><primary sortas="c-libmagic">libmagic</primary></indexterm>
<para id="libmagic"><command>libmagic</command> contains routines for magic number
recognition, used by the file program.</para>

</sect2>



</sect1>