source: BOOK/final-system/common/bzip2.xml @ 94e6142

clfs-1.2clfs-2.1clfs-3.0.0-systemdclfs-3.0.0-sysvinitsystemdsysvinit
Last change on this file since 94e6142 was 94e6142, checked in by Jim Gifford <clfs@…>, 18 years ago

r1167@server (orig r1165): chris | 2006-02-11 08:13:02 -0800
Added -v to commands in the rest of the book

  • Property mode set to 100644
File size: 8.1 KB
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1<?xml version="1.0" encoding="ISO-8859-1"?>
2<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
3  "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
4  <!ENTITY % general-entities SYSTEM "../../general.ent">
5  %general-entities;
6]>
7
8<sect1 id="ch-system-bzip2" role="wrap">
9  <?dbhtml filename="bzip2.html"?>
10
11  <title>Bzip2-&bzip2-version;</title>
12
13  <indexterm zone="ch-system-bzip2">
14    <primary sortas="a-Bzip2">Bzip2</primary>
15  </indexterm>
16
17  <sect2 role="package">
18    <title/>
19
20    <para>The Bzip2 package contains programs for compressing and
21    decompressing files. Compressing text files with <command>bzip2</command>
22    yields a much better compression percentage than with the traditional
23    <command>gzip</command>.</para>
24
25    <segmentedlist>
26      <segtitle>&dependencies;</segtitle>
27
28      <seglistitem>
29        <seg>Bash, Binutils, Coreutils, Diffutils, GCC, Glibc, Make,
30        and Patch</seg>
31      </seglistitem>
32    </segmentedlist>
33
34  </sect2>
35
36  <sect2 role="installation">
37    <title>Installation of Bzip2</title>
38
39    <para os="p1">Apply a patch to install the documentation for this
40    package:</para>
41
42<screen os="p2"><userinput>patch -Np1 -i ../&bzip2-docs-patch;</userinput></screen>
43
44    <para os="p3">The <command>bzgrep</command> command does not escape '|' and
45    '&amp;' in filenames passed to it. This allows arbitrary commands to be
46    executed with the privileges of the user running <command>bzgrep</command>.
47    Apply the following patch to address this:</para>
48
49<screen os="p4"><userinput>patch -Np1 -i ../&bzip2-bzgrep-patch;</userinput></screen>
50
51    <para os="a">The Bzip2 package does not contain a <command>configure</command>
52    script. Compile it with:</para>
53
54<screen os="b"><userinput>make -f Makefile-libbz2_so
55make clean</userinput></screen>
56
57    <para os="c">The <parameter>-f</parameter> flag will cause Bzip2 to be built
58    using a different <filename>Makefile</filename> file, in this case the
59    <filename>Makefile-libbz2_so</filename> file, which creates a dynamic
60    <filename class="libraryfile">libbz2.so</filename> library and links the
61    Bzip2 utilities against it.</para>
62
63    <para os="d">Recompile the package using a non-shared library and test it.</para>
64
65<screen os="e"><userinput>make</userinput></screen>
66
67    <para os="f">If reinstalling Bzip2, perform
68    <userinput>rm -vf /usr/bin/bz*</userinput> first, otherwise the
69    following <command>make install</command> will fail.</para>
70
71    <para os="g">Install the programs:</para>
72
73<screen os="h"><userinput>make install</userinput></screen>
74
75    <para os="i">Install the shared <command>bzip2</command> binary into the
76    <filename class="directory">/bin</filename> directory, make
77    some necessary symbolic links, and clean up:</para>
78
79<screen os="j"><userinput>cp -v bzip2-shared /bin/bzip2
80cp -av libbz2.so* /lib
81ln -sv ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so
82rm -v /usr/bin/{bunzip2,bzcat,bzip2}
83ln -sv bzip2 /bin/bunzip2
84ln -sv bzip2 /bin/bzcat</userinput></screen>
85
86  </sect2>
87
88  <sect2 id="contents-bzip2" role="content">
89    <title>Contents of Bzip2</title>
90
91    <segmentedlist>
92      <segtitle>Installed programs</segtitle>
93      <segtitle>Installed libraries</segtitle>
94
95      <seglistitem>
96        <seg>bunzip2 (link to bzip2), bzcat (link to bzip2), bzcmp, bzdiff,
97        bzegrep, bzfgrep, bzgrep, bzip2, bzip2recover, bzless, and bzmore</seg>
98        <seg>libbz2.a, libbz2.so (link to libbz2.so.1.0), libbz2.so.1.0 (link to
99        libbz2.so.&bzip2-version;), and libbz2.so.&bzip2-version;</seg>
100      </seglistitem>
101    </segmentedlist>
102
103    <variablelist>
104      <bridgehead renderas="sect3">Short Descriptions</bridgehead>
105      <?dbfo list-presentation="list"?>
106      <?dbhtml list-presentation="table"?>
107
108      <varlistentry id="bunzip2">
109        <term><command>bunzip2</command></term>
110        <listitem>
111          <para>Decompresses bzipped files</para>
112          <indexterm zone="ch-system-bzip2 bunzip2">
113            <primary sortas="b-bunzip2">bunzip2</primary>
114          </indexterm>
115        </listitem>
116      </varlistentry>
117
118      <varlistentry id="bzcat">
119        <term><command>bzcat</command></term>
120        <listitem>
121          <para>Decompresses to standard output</para>
122          <indexterm zone="ch-system-bzip2 bzcat">
123            <primary sortas="b-bzcat">bzcat</primary>
124          </indexterm>
125        </listitem>
126      </varlistentry>
127
128      <varlistentry id="bzcmp">
129        <term><command>bzcmp</command></term>
130        <listitem>
131          <para>Runs <command>cmp</command> on bzipped files</para>
132          <indexterm zone="ch-system-bzip2 bzcmp">
133            <primary sortas="b-bzcmp">bzcmp</primary>
134          </indexterm>
135        </listitem>
136      </varlistentry>
137
138      <varlistentry id="bzdiff">
139        <term><command>bzdiff</command></term>
140        <listitem>
141          <para>Runs <command>diff</command> on bzipped files</para>
142          <indexterm zone="ch-system-bzip2 bzdiff">
143            <primary sortas="b-bzdiff">bzdiff</primary>
144          </indexterm>
145        </listitem>
146      </varlistentry>
147
148      <varlistentry id="bzgrep">
149        <term><command>bzgrep</command></term>
150        <listitem>
151          <para>Runs <command>grep</command> on bzipped files</para>
152          <indexterm zone="ch-system-bzip2 bzgrep">
153            <primary sortas="b-bzgrep">bzgrep</primary>
154          </indexterm>
155        </listitem>
156      </varlistentry>
157
158      <varlistentry id="bzegrep">
159        <term><command>bzegrep</command></term>
160        <listitem>
161          <para>Runs <command>egrep</command> on bzipped files</para>
162          <indexterm zone="ch-system-bzip2 bzegrep">
163            <primary sortas="b-bzegrep">bzegrep</primary>
164          </indexterm>
165        </listitem>
166      </varlistentry>
167
168      <varlistentry id="bzfgrep">
169        <term><command>bzfgrep</command></term>
170        <listitem>
171          <para>Runs <command>fgrep</command> on bzipped files</para>
172          <indexterm zone="ch-system-bzip2 bzfgrep">
173            <primary sortas="b-bzfgrep">bzfgrep</primary>
174          </indexterm>
175        </listitem>
176      </varlistentry>
177
178      <varlistentry id="bzip2">
179        <term><command>bzip2</command></term>
180        <listitem>
181          <para>Compresses files using the Burrows-Wheeler block sorting text
182          compression algorithm with Huffman coding; the compression rate is
183          better than that achieved by more conventional compressors using
184          <quote>Lempel-Ziv</quote> algorithms, like <command>gzip</command></para>
185          <indexterm zone="ch-system-bzip2 bzip2">
186            <primary sortas="b-bzip2">bzip2</primary>
187          </indexterm>
188        </listitem>
189      </varlistentry>
190
191      <varlistentry id="bzip2recover">
192        <term><command>bzip2recover</command></term>
193        <listitem>
194          <para>Tries to recover data from damaged bzipped files</para>
195          <indexterm zone="ch-system-bzip2 bzip2recover">
196            <primary sortas="b-bzip2recover">bzip2recover</primary>
197          </indexterm>
198        </listitem>
199      </varlistentry>
200
201      <varlistentry id="bzless">
202        <term><command>bzless</command></term>
203        <listitem>
204          <para>Runs <command>less</command> on bzipped files</para>
205          <indexterm zone="ch-system-bzip2 bzless">
206            <primary sortas="b-bzless">bzless</primary>
207          </indexterm>
208        </listitem>
209      </varlistentry>
210
211      <varlistentry id="bzmore">
212        <term><command>bzmore</command></term>
213        <listitem>
214          <para>Runs <command>more</command> on bzipped files</para>
215          <indexterm zone="ch-system-bzip2 bzmore">
216            <primary sortas="b-bzmore">bzmore</primary>
217          </indexterm>
218        </listitem>
219      </varlistentry>
220
221      <varlistentry id="libbz2">
222        <term><filename class="libraryfile">libbz2*</filename></term>
223        <listitem>
224          <para>The library implementing lossless, block-sorting data
225          compression, using the Burrows-Wheeler algorithm</para>
226          <indexterm zone="ch-system-bzip2 libbz2">
227            <primary sortas="c-libbz2*">libbz2*</primary>
228          </indexterm>
229        </listitem>
230      </varlistentry>
231
232    </variablelist>
233
234  </sect2>
235
236</sect1>
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