[bf8c11f] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [ |
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| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent"> |
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| 5 | %general-entities; |
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| 6 | ]> |
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| 7 | |
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| 8 | <sect1 id="ch-system-bzip2" role="wrap"> |
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| 9 | <?dbhtml filename="bzip2.html"?> |
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| 10 | |
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| 11 | <title>Bzip2-&bzip2-version;</title> |
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| 12 | |
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| 13 | <indexterm zone="ch-system-bzip2"> |
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| 14 | <primary sortas="a-Bzip2">Bzip2</primary> |
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| 15 | </indexterm> |
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| 16 | |
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| 17 | <sect2 role="package"> |
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| 18 | <title/> |
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| 19 | |
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| 20 | <para>The Bzip2 package contains programs for compressing and |
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| 21 | decompressing files. Compressing text files with <command>bzip2</command> |
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| 22 | yields a much better compression percentage than with the traditional |
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| 23 | <command>gzip</command>.</para> |
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| 24 | |
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| 25 | <segmentedlist> |
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| 26 | <segtitle>&dependencies;</segtitle> |
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| 27 | |
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| 28 | <seglistitem> |
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| 29 | <seg>Bash, Binutils, Coreutils, Diffutils, GCC, Glibc, and Make</seg> |
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| 30 | </seglistitem> |
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| 31 | </segmentedlist> |
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| 32 | |
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| 33 | </sect2> |
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| 34 | |
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| 35 | <sect2 role="installation"> |
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| 36 | <title>Installation of Bzip2</title> |
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| 37 | |
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| 38 | <para os="j">Apply a patch to install the documentation for this |
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| 39 | package:</para> |
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| 40 | |
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| 41 | <screen os="k"><userinput>patch -Np1 -i ../&bzip2-docs-patch;</userinput></screen> |
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| 42 | |
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| 43 | <para os="l">The <command>bzgrep</command> command does not escape '|' and |
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| 44 | '&' in filenames passed to it. This allows arbitrary commands to be |
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| 45 | executed with the privileges of the user running <command>bzgrep</command>. |
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| 46 | Apply the following patch to address this:</para> |
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| 47 | |
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| 48 | <screen os="m"><userinput>patch -Np1 -i ../&bzip2-bzgrep-patch;</userinput></screen> |
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| 49 | |
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| 50 | <para os="a">The Bzip2 package does not contain a <command>configure</command> |
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| 51 | script. Compile it with:</para> |
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| 52 | |
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| 53 | <screen><userinput>make -f Makefile-libbz2_so |
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| 54 | make clean</userinput></screen> |
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| 55 | |
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| 56 | <para os="b">The <parameter>-f</parameter> flag will cause Bzip2 to be built |
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| 57 | using a different <filename>Makefile</filename> file, in this case the |
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| 58 | <filename>Makefile-libbz2_so</filename> file, which creates a dynamic |
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| 59 | <filename class="libraryfile">libbz2.so</filename> library and links the |
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| 60 | Bzip2 utilities against it.</para> |
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| 61 | |
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[1772546] | 62 | <para os="c">Compile and test the package:</para> |
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[bf8c11f] | 63 | |
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| 64 | <screen><userinput>make</userinput></screen> |
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| 65 | |
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| 66 | <para os="e">If reinstalling Bzip2, perform |
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| 67 | <userinput>rm -f /usr/bin/bz*</userinput> first, otherwise the |
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| 68 | following <command>make install</command> will fail.</para> |
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| 69 | |
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| 70 | <para os="f">Install the programs:</para> |
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| 71 | |
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| 72 | <screen os="g"><userinput>make install</userinput></screen> |
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| 73 | |
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| 74 | <para os="h">Install the shared <command>bzip2</command> binary into the |
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| 75 | <filename class="directory">/bin</filename> directory, make |
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| 76 | some necessary symbolic links, and clean up:</para> |
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| 77 | |
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| 78 | <screen os="i"><userinput>cp bzip2-shared /bin/bzip2 |
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| 79 | cp -a libbz2.so* /lib |
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| 80 | ln -s ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so |
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| 81 | rm /usr/bin/{bunzip2,bzcat,bzip2} |
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| 82 | ln -s bzip2 /bin/bunzip2 |
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| 83 | ln -s bzip2 /bin/bzcat</userinput></screen> |
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| 84 | |
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| 85 | </sect2> |
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| 86 | |
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| 87 | <sect2 id="contents-bzip2" role="content"> |
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| 88 | <title>Contents of Bzip2</title> |
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| 89 | |
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| 90 | <segmentedlist> |
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| 91 | <segtitle>Installed programs</segtitle> |
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| 92 | <segtitle>Installed libraries</segtitle> |
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| 93 | |
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| 94 | <seglistitem> |
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| 95 | <seg>bunzip2 (link to bzip2), bzcat (link to bzip2), bzcmp, bzdiff, |
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| 96 | bzegrep, bzfgrep, bzgrep, bzip2, bzip2recover, bzless, and bzmore</seg> |
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| 97 | <seg>libbz2.a, libbz2.so (link to libbz2.so.1.0), libbz2.so.1.0 (link to |
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| 98 | libbz2.so.&bzip2-version;), and libbz2.so.&bzip2-version;</seg> |
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| 99 | </seglistitem> |
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| 100 | </segmentedlist> |
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| 101 | |
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| 102 | <variablelist> |
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| 103 | <bridgehead renderas="sect3">Short Descriptions</bridgehead> |
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| 104 | <?dbfo list-presentation="list"?> |
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| 105 | <?dbhtml list-presentation="table"?> |
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| 106 | |
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| 107 | <varlistentry id="bunzip2"> |
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| 108 | <term><command>bunzip2</command></term> |
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| 109 | <listitem> |
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| 110 | <para>Decompresses bzipped files</para> |
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| 111 | <indexterm zone="ch-system-bzip2 bunzip2"> |
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| 112 | <primary sortas="b-bunzip2">bunzip2</primary> |
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| 113 | </indexterm> |
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| 114 | </listitem> |
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| 115 | </varlistentry> |
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| 116 | |
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| 117 | <varlistentry id="bzcat"> |
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| 118 | <term><command>bzcat</command></term> |
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| 119 | <listitem> |
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| 120 | <para>Decompresses to standard output</para> |
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| 121 | <indexterm zone="ch-system-bzip2 bzcat"> |
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| 122 | <primary sortas="b-bzcat">bzcat</primary> |
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| 123 | </indexterm> |
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| 124 | </listitem> |
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| 125 | </varlistentry> |
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| 126 | |
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| 127 | <varlistentry id="bzcmp"> |
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| 128 | <term><command>bzcmp</command></term> |
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| 129 | <listitem> |
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| 130 | <para>Runs <command>cmp</command> on bzipped files</para> |
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| 131 | <indexterm zone="ch-system-bzip2 bzcmp"> |
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| 132 | <primary sortas="b-bzcmp">bzcmp</primary> |
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| 133 | </indexterm> |
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| 134 | </listitem> |
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| 135 | </varlistentry> |
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| 136 | |
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| 137 | <varlistentry id="bzdiff"> |
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| 138 | <term><command>bzdiff</command></term> |
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| 139 | <listitem> |
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| 140 | <para>Runs <command>diff</command> on bzipped files</para> |
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| 141 | <indexterm zone="ch-system-bzip2 bzdiff"> |
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| 142 | <primary sortas="b-bzdiff">bzdiff</primary> |
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| 143 | </indexterm> |
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| 144 | </listitem> |
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| 145 | </varlistentry> |
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| 146 | |
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| 147 | <varlistentry id="bzgrep"> |
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| 148 | <term><command>bzgrep</command></term> |
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| 149 | <listitem> |
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| 150 | <para>Runs <command>grep</command> on bzipped files</para> |
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| 151 | <indexterm zone="ch-system-bzip2 bzgrep"> |
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| 152 | <primary sortas="b-bzgrep">bzgrep</primary> |
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| 153 | </indexterm> |
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| 154 | </listitem> |
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| 155 | </varlistentry> |
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| 156 | |
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| 157 | <varlistentry id="bzegrep"> |
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| 158 | <term><command>bzegrep</command></term> |
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| 159 | <listitem> |
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| 160 | <para>Runs <command>egrep</command> on bzipped files</para> |
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| 161 | <indexterm zone="ch-system-bzip2 bzegrep"> |
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| 162 | <primary sortas="b-bzegrep">bzegrep</primary> |
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| 163 | </indexterm> |
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| 164 | </listitem> |
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| 165 | </varlistentry> |
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| 166 | |
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| 167 | <varlistentry id="bzfgrep"> |
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| 168 | <term><command>bzfgrep</command></term> |
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| 169 | <listitem> |
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| 170 | <para>Runs <command>fgrep</command> on bzipped files</para> |
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| 171 | <indexterm zone="ch-system-bzip2 bzfgrep"> |
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| 172 | <primary sortas="b-bzfgrep">bzfgrep</primary> |
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| 173 | </indexterm> |
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| 174 | </listitem> |
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| 175 | </varlistentry> |
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| 176 | |
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| 177 | <varlistentry id="bzip2"> |
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| 178 | <term><command>bzip2</command></term> |
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| 179 | <listitem> |
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| 180 | <para>Compresses files using the Burrows-Wheeler block sorting text |
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| 181 | compression algorithm with Huffman coding; the compression rate is |
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| 182 | better than that achieved by more conventional compressors using |
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| 183 | <quote>Lempel-Ziv</quote> algorithms, like <command>gzip</command></para> |
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| 184 | <indexterm zone="ch-system-bzip2 bzip2"> |
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| 185 | <primary sortas="b-bzip2">bzip2</primary> |
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| 186 | </indexterm> |
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| 187 | </listitem> |
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| 188 | </varlistentry> |
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| 189 | |
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| 190 | <varlistentry id="bzip2recover"> |
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| 191 | <term><command>bzip2recover</command></term> |
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| 192 | <listitem> |
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| 193 | <para>Tries to recover data from damaged bzipped files</para> |
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| 194 | <indexterm zone="ch-system-bzip2 bzip2recover"> |
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| 195 | <primary sortas="b-bzip2recover">bzip2recover</primary> |
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| 196 | </indexterm> |
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| 197 | </listitem> |
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| 198 | </varlistentry> |
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| 199 | |
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| 200 | <varlistentry id="bzless"> |
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| 201 | <term><command>bzless</command></term> |
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| 202 | <listitem> |
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| 203 | <para>Runs <command>less</command> on bzipped files</para> |
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| 204 | <indexterm zone="ch-system-bzip2 bzless"> |
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| 205 | <primary sortas="b-bzless">bzless</primary> |
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| 206 | </indexterm> |
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| 207 | </listitem> |
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| 208 | </varlistentry> |
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| 209 | |
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| 210 | <varlistentry id="bzmore"> |
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| 211 | <term><command>bzmore</command></term> |
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| 212 | <listitem> |
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| 213 | <para>Runs <command>more</command> on bzipped files</para> |
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| 214 | <indexterm zone="ch-system-bzip2 bzmore"> |
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| 215 | <primary sortas="b-bzmore">bzmore</primary> |
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| 216 | </indexterm> |
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| 217 | </listitem> |
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| 218 | </varlistentry> |
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| 219 | |
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| 220 | <varlistentry id="libbz2"> |
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| 221 | <term><filename class="libraryfile">libbz2*</filename></term> |
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| 222 | <listitem> |
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| 223 | <para>The library implementing lossless, block-sorting data |
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| 224 | compression, using the Burrows-Wheeler algorithm</para> |
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| 225 | <indexterm zone="ch-system-bzip2 libbz2"> |
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| 226 | <primary sortas="c-libbz2*">libbz2*</primary> |
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| 227 | </indexterm> |
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| 228 | </listitem> |
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| 229 | </varlistentry> |
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| 230 | |
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| 231 | </variablelist> |
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| 232 | |
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| 233 | </sect2> |
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| 234 | |
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| 235 | </sect1> |
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