source: chapter06/bzip2.xml@ bab5592

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Last change on this file since bab5592 was 81fd230, checked in by Gerard Beekmans <gerard@…>, 19 years ago

Trunk is now identical to Testing

git-svn-id: http://svn.linuxfromscratch.org/LFS/trunk/BOOK@4648 4aa44e1e-78dd-0310-a6d2-fbcd4c07a689

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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
3 <!ENTITY % general-entities SYSTEM "../general.ent">
4 %general-entities;
5]>
6<sect1 id="ch-system-bzip2" role="wrap">
7<title>Bzip2-&bzip2-version;</title>
8<?dbhtml filename="bzip2.html"?>
9
10<indexterm zone="ch-system-bzip2"><primary sortas="a-Bzip2">Bzip2</primary></indexterm>
11
12<sect2 role="package"><title/>
13<para>The Bzip2 package contains programs for compressing and decompressing
14files. Text files yield a much better compression than with the
15traditional <command>gzip</command>.</para>
16
17<segmentedlist>
18<segtitle>&buildtime;</segtitle>
19<segtitle>&diskspace;</segtitle>
20<seglistitem><seg>0.1 SBU</seg><seg>3.0 MB</seg></seglistitem>
21</segmentedlist>
22
23<segmentedlist>
24<segtitle>Bzip2 installation depends on</segtitle>
25<seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
26GCC, Glibc, and Make</seg></seglistitem>
27</segmentedlist>
28</sect2>
29
30<sect2 role="installation">
31<title>Installation of Bzip2</title>
32
33<para>Prepare Bzip2 for compilation with:</para>
34
35<screen><userinput>make -f Makefile-libbz2_so
36make clean</userinput></screen>
37
38<para>The <parameter>-f</parameter> flag will cause Bzip2 to be built
39using a different <filename>Makefile</filename> file, in this case the
40<filename>Makefile-libbz2_so</filename> file, which creates a dynamic
41<filename class="libraryfile">libbz2.so</filename> library and links the Bzip2
42utilities against it.</para>
43
44<para>Compile the package:</para>
45
46<screen><userinput>make</userinput></screen>
47
48<para>If reinstalling Bzip2, perform
49<userinput>rm -f /usr/bin/bz*</userinput> first, otherwise the following
50<command>make install</command> will fail.</para>
51
52<para>Install the programs:</para>
53
54<screen><userinput>make install</userinput></screen>
55
56<para>Install the shared <command>bzip2</command> binary into the
57<filename class="directory">/bin</filename> directory, make
58some necessary symbolic links, and clean up:</para>
59
60<screen><userinput>cp bzip2-shared /bin/bzip2
61cp -a libbz2.so* /lib
62ln -s ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so
63rm /usr/bin/{bunzip2,bzcat,bzip2}
64ln -s bzip2 /bin/bunzip2
65ln -s bzip2 /bin/bzcat</userinput></screen>
66
67</sect2>
68
69
70<sect2 id="contents-bzip2" role="content"><title>Contents of Bzip2</title>
71
72<segmentedlist>
73<segtitle>Installed programs</segtitle>
74<segtitle>Installed libraries</segtitle>
75<seglistitem><seg>bunzip2 (link to bzip2), bzcat (link to bzip2), bzcmp, bzdiff,
76bzegrep, bzfgrep, bzgrep, bzip2, bzip2recover, bzless, and bzmore</seg>
77<seg>libbz2.a, libbz2.so (link to libbz2.so.1.0), libbz2.so.1.0 (link to
78libbz2.so.&bzip2-version;), and libbz2.so.&bzip2-version;</seg></seglistitem>
79</segmentedlist>
80
81<variablelist><bridgehead renderas="sect3">Short Descriptions</bridgehead>
82<?dbfo list-presentation="list"?>
83
84<varlistentry id="bunzip2">
85<term><command>bunzip2</command></term>
86<listitem>
87<para>Decompresses bzipped files</para>
88<indexterm zone="ch-system-bzip2 bunzip2"><primary sortas="b-bunzip2">bunzip2</primary></indexterm>
89</listitem>
90</varlistentry>
91
92<varlistentry id="bzcat">
93<term><command>bzcat</command></term>
94<listitem>
95<para>Decompresses to standard output</para>
96<indexterm zone="ch-system-bzip2 bzcat"><primary sortas="b-bzcat">bzcat</primary></indexterm>
97</listitem>
98</varlistentry>
99
100<varlistentry id="bzcmp">
101<term><command>bzcmp</command></term>
102<listitem>
103<para>Runs <command>cmp</command> on bzipped files</para>
104<indexterm zone="ch-system-bzip2 bzcmp"><primary sortas="b-bzcmp">bzcmp</primary></indexterm>
105</listitem>
106</varlistentry>
107
108<varlistentry id="bzdiff">
109<term><command>bzdiff</command></term>
110<listitem>
111<para>Runs <command>diff</command> on bzipped files</para>
112<indexterm zone="ch-system-bzip2 bzdiff"><primary sortas="b-bzdiff">bzdiff</primary></indexterm>
113</listitem>
114</varlistentry>
115
116<varlistentry id="bzgrep">
117<term><command>bzgrep</command></term>
118<listitem>
119<para>Runs <command>grep</command> on bzipped files</para>
120<indexterm zone="ch-system-bzip2 bzgrep"><primary sortas="b-bzgrep">bzgrep</primary></indexterm>
121</listitem>
122</varlistentry>
123
124<varlistentry id="bzegrep">
125<term><command>bzegrep</command></term>
126<listitem>
127<para>Runs <command>egrep</command> on bzipped files</para>
128<indexterm zone="ch-system-bzip2 bzegrep"><primary sortas="b-bzegrep">bzegrep</primary></indexterm>
129</listitem>
130</varlistentry>
131
132<varlistentry id="bzfgrep">
133<term><command>bzfgrep</command></term>
134<listitem>
135<para>Runs <command>fgrep</command> on bzipped files</para>
136<indexterm zone="ch-system-bzip2 bzfgrep"><primary sortas="b-bzfgrep">bzfgrep</primary></indexterm>
137</listitem>
138</varlistentry>
139
140<varlistentry id="bzip2">
141<term><command>bzip2</command></term>
142<listitem>
143<para>Compresses files using the Burrows-Wheeler block sorting text
144compression algorithm with Huffman coding; the compression rate is
145better than that achieved by more conventional compressors using
146<quote>Lempel-Ziv</quote> algorithms, like <command>gzip</command></para>
147<indexterm zone="ch-system-bzip2 bzip2"><primary sortas="b-bzip2">bzip2</primary></indexterm>
148</listitem>
149</varlistentry>
150
151<varlistentry id="bzip2recover">
152<term><command>bzip2recover</command></term>
153<listitem>
154<para>Tries to recover data from damaged bzipped files</para>
155<indexterm zone="ch-system-bzip2 bzip2recover"><primary sortas="b-bzip2recover">bzip2recover</primary></indexterm>
156</listitem>
157</varlistentry>
158
159<varlistentry id="bzless">
160<term><command>bzless</command></term>
161<listitem>
162<para>Runs <command>less</command> on bzipped files</para>
163<indexterm zone="ch-system-bzip2 bzless"><primary sortas="b-bzless">bzless</primary></indexterm>
164</listitem>
165</varlistentry>
166
167<varlistentry id="bzmore">
168<term><command>bzmore</command></term>
169<listitem>
170<para>Runs <command>more</command> on bzipped files</para>
171<indexterm zone="ch-system-bzip2 bzmore"><primary sortas="b-bzmore">bzmore</primary></indexterm>
172</listitem>
173</varlistentry>
174
175<varlistentry id="libbz2">
176<term><filename class="libraryfile">libbz2*</filename></term>
177<listitem>
178<para>The library implementing lossless, block-sorting data
179compression, using the Burrows-Wheeler algorithm</para>
180<indexterm zone="ch-system-bzip2 libbz2"><primary sortas="c-libbz2*">libbz2*</primary></indexterm>
181</listitem>
182</varlistentry>
183</variablelist>
184
185</sect2>
186
187</sect1>
188
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