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git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@6011 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689
194 lines
6.3 KiB
XML
194 lines
6.3 KiB
XML
<?xml version="1.0" encoding="ISO-8859-1"?>
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<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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<!ENTITY % general-entities SYSTEM "../general.ent">
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<!ENTITY % patches-entities SYSTEM "../patches.ent">
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%general-entities;
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%patches-entities;
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]>
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<sect1 id="ch-system-bzip2" role="wrap">
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<title>Bzip2-&bzip2-version;</title>
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<?dbhtml filename="bzip2.html"?>
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<indexterm zone="ch-system-bzip2"><primary sortas="a-Bzip2">Bzip2</primary></indexterm>
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<sect2 role="package"><title/>
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<para>The Bzip2 package contains programs for compressing and decompressing
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files. Compressing text files with <command>bzip2</command> yields a much better
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compression percentage than with the traditional <command>gzip</command>.</para>
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<segmentedlist>
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<segtitle>&buildtime;</segtitle>
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<segtitle>&diskspace;</segtitle>
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<seglistitem><seg>0.1 SBU</seg><seg>3.9 MB</seg></seglistitem>
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</segmentedlist>
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<segmentedlist>
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<segtitle>&dependencies;</segtitle>
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<seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
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GCC, Glibc, and Make</seg></seglistitem>
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</segmentedlist>
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</sect2>
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<sect2 role="installation">
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<title>Installation of Bzip2</title>
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<para>Prepare Bzip2 for compilation with:</para>
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<screen><userinput>make -f Makefile-libbz2_so
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make clean</userinput></screen>
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<para>The <parameter>-f</parameter> flag will cause Bzip2 to be built
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using a different <filename>Makefile</filename> file, in this case the
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<filename>Makefile-libbz2_so</filename> file, which creates a dynamic
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<filename class="libraryfile">libbz2.so</filename> library and links the Bzip2
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utilities against it.</para>
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<para>Compile the package:</para>
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<screen><userinput>make</userinput></screen>
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<para>To test the results, issue:
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<userinput>make test</userinput>.</para>
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<para>If reinstalling Bzip2, perform
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<userinput>rm -f /usr/bin/bz*</userinput> first, otherwise the following
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<command>make install</command> will fail.</para>
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<para>Install the programs:</para>
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<screen><userinput>make install</userinput></screen>
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<para>Install the shared <command>bzip2</command> binary into the
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<filename class="directory">/bin</filename> directory, make
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some necessary symbolic links, and clean up:</para>
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<screen><userinput>cp bzip2-shared /bin/bzip2
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cp -a libbz2.so* /lib
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ln -s ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so
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rm /usr/bin/{bunzip2,bzcat,bzip2}
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ln -s bzip2 /bin/bunzip2
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ln -s bzip2 /bin/bzcat</userinput></screen>
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</sect2>
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<sect2 id="contents-bzip2" role="content"><title>Contents of Bzip2</title>
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<segmentedlist>
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<segtitle>Installed programs</segtitle>
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<segtitle>Installed libraries</segtitle>
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<seglistitem><seg>bunzip2 (link to bzip2), bzcat (link to bzip2), bzcmp, bzdiff,
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bzegrep, bzfgrep, bzgrep, bzip2, bzip2recover, bzless, and bzmore</seg>
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<seg>libbz2.[a,so]</seg></seglistitem>
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</segmentedlist>
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<variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
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<?dbfo list-presentation="list"?>
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<?dbhtml list-presentation="table"?>
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<varlistentry id="bunzip2">
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<term><command>bunzip2</command></term>
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<listitem>
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<para>Decompresses bzipped files</para>
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<indexterm zone="ch-system-bzip2 bunzip2"><primary sortas="b-bunzip2">bunzip2</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzcat">
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<term><command>bzcat</command></term>
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<listitem>
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<para>Decompresses to standard output</para>
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<indexterm zone="ch-system-bzip2 bzcat"><primary sortas="b-bzcat">bzcat</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzcmp">
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<term><command>bzcmp</command></term>
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<listitem>
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<para>Runs <command>cmp</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzcmp"><primary sortas="b-bzcmp">bzcmp</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzdiff">
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<term><command>bzdiff</command></term>
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<listitem>
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<para>Runs <command>diff</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzdiff"><primary sortas="b-bzdiff">bzdiff</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzgrep">
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<term><command>bzgrep</command></term>
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<listitem>
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<para>Runs <command>grep</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzgrep"><primary sortas="b-bzgrep">bzgrep</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzegrep">
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<term><command>bzegrep</command></term>
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<listitem>
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<para>Runs <command>egrep</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzegrep"><primary sortas="b-bzegrep">bzegrep</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzfgrep">
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<term><command>bzfgrep</command></term>
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<listitem>
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<para>Runs <command>fgrep</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzfgrep"><primary sortas="b-bzfgrep">bzfgrep</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzip2">
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<term><command>bzip2</command></term>
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<listitem>
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<para>Compresses files using the Burrows-Wheeler block sorting text
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compression algorithm with Huffman coding; the compression rate is
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better than that achieved by more conventional compressors using
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<quote>Lempel-Ziv</quote> algorithms, like <command>gzip</command></para>
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<indexterm zone="ch-system-bzip2 bzip2"><primary sortas="b-bzip2">bzip2</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzip2recover">
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<term><command>bzip2recover</command></term>
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<listitem>
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<para>Tries to recover data from damaged bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzip2recover"><primary sortas="b-bzip2recover">bzip2recover</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzless">
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<term><command>bzless</command></term>
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<listitem>
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<para>Runs <command>less</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzless"><primary sortas="b-bzless">bzless</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="bzmore">
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<term><command>bzmore</command></term>
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<listitem>
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<para>Runs <command>more</command> on bzipped files</para>
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<indexterm zone="ch-system-bzip2 bzmore"><primary sortas="b-bzmore">bzmore</primary></indexterm>
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</listitem>
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</varlistentry>
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<varlistentry id="libbz2">
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<term><filename class="libraryfile">libbz2*</filename></term>
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<listitem>
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<para>The library implementing lossless, block-sorting data
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compression, using the Burrows-Wheeler algorithm</para>
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<indexterm zone="ch-system-bzip2 libbz2"><primary sortas="c-libbz2*">libbz2*</primary></indexterm>
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</listitem>
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</varlistentry>
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</variablelist>
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</sect2>
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</sect1>
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