[3f8be484] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?> |
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[aa18ac0] | 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN" |
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [ |
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[3f8be484] | 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 | </sect2> |
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| 26 | |
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| 27 | <sect2 role="installation"> |
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| 28 | <title>Installation of Bzip2</title> |
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| 29 | |
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[1f7883fe] | 30 | <para os="s1">By default Bzip2 creates some symlinks that use absolute |
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| 31 | pathnames. The following sed will cause them to be created with relative |
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| 32 | paths instead:</para> |
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[946b71d] | 33 | |
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| 34 | <screen os="s2"><userinput>sed -i -e 's:ln -s -f $(PREFIX)/bin/:ln -s :' Makefile</userinput></screen> |
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| 35 | |
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[b8bd862] | 36 | <para os="s3">Make Bzip2 install its manpages in |
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| 37 | <filename class="directory">/usr/share/man</filename> instead of |
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| 38 | <filename class="directory">/usr/man</filename>:</para> |
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| 39 | |
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| 40 | <screen os="s4"><userinput>sed -i 's@X)/man@X)/share/man@g' ./Makefile</userinput></screen> |
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| 41 | |
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[3f8be484] | 42 | <para os="a">The Bzip2 package does not contain a <command>configure</command> |
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| 43 | script. Compile it with:</para> |
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| 44 | |
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[e0e40d3] | 45 | <screen os="b"><userinput>make -f Makefile-libbz2_so |
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[3f8be484] | 46 | make clean</userinput></screen> |
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| 47 | |
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[e0e40d3] | 48 | <para os="c">The <parameter>-f</parameter> flag will cause Bzip2 to be built |
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[3f8be484] | 49 | using a different <filename>Makefile</filename> file, in this case the |
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| 50 | <filename>Makefile-libbz2_so</filename> file, which creates a dynamic |
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| 51 | <filename class="libraryfile">libbz2.so</filename> library and links the |
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| 52 | Bzip2 utilities against it.</para> |
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| 53 | |
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[ac3984c] | 54 | <para os="d">Recompile the package using a non-shared library and test it:</para> |
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[3f8be484] | 55 | |
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[e0e40d3] | 56 | <screen os="e"><userinput>make</userinput></screen> |
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[3f8be484] | 57 | |
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[e0e40d3] | 58 | <para os="g">Install the programs:</para> |
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[3f8be484] | 59 | |
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[05223c1] | 60 | <screen os="h"><userinput>make PREFIX=/usr install</userinput></screen> |
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[3f8be484] | 61 | |
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[e0e40d3] | 62 | <para os="i">Install the shared <command>bzip2</command> binary into the |
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[3f8be484] | 63 | <filename class="directory">/bin</filename> directory, make |
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| 64 | some necessary symbolic links, and clean up:</para> |
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| 65 | |
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[94e6142] | 66 | <screen os="j"><userinput>cp -v bzip2-shared /bin/bzip2 |
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| 67 | cp -av libbz2.so* /lib |
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| 68 | ln -sv ../../lib/libbz2.so.1.0 /usr/lib/libbz2.so |
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| 69 | rm -v /usr/bin/{bunzip2,bzcat,bzip2} |
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| 70 | ln -sv bzip2 /bin/bunzip2 |
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| 71 | ln -sv bzip2 /bin/bzcat</userinput></screen> |
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[3f8be484] | 72 | |
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| 73 | </sect2> |
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| 74 | |
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| 75 | <sect2 id="contents-bzip2" role="content"> |
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| 76 | <title>Contents of Bzip2</title> |
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| 77 | |
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| 78 | <segmentedlist> |
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| 79 | <segtitle>Installed programs</segtitle> |
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| 80 | <segtitle>Installed libraries</segtitle> |
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| 81 | |
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| 82 | <seglistitem> |
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[1f7883fe] | 83 | <seg>bunzip2 (link to bzip2), bzcat (link to bzip2), bzcmp (link to |
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| 84 | bzdiff), bzdiff, bzegrep (link to bzgrep), bzfgrep (link to bzgrep), |
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[c2102b28] | 85 | bzgrep, bzip2, bzip2recover, bzless (link to bzmore), bzmore</seg> |
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[3f8be484] | 86 | <seg>libbz2.a, libbz2.so (link to libbz2.so.1.0), libbz2.so.1.0 (link to |
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[c2102b28] | 87 | libbz2.so.&bzip2-version;), libbz2.so.&bzip2-version;</seg> |
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[3f8be484] | 88 | </seglistitem> |
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| 89 | </segmentedlist> |
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| 90 | |
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| 91 | <variablelist> |
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| 92 | <bridgehead renderas="sect3">Short Descriptions</bridgehead> |
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| 93 | <?dbfo list-presentation="list"?> |
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| 94 | <?dbhtml list-presentation="table"?> |
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| 95 | |
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| 96 | <varlistentry id="bunzip2"> |
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| 97 | <term><command>bunzip2</command></term> |
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| 98 | <listitem> |
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| 99 | <para>Decompresses bzipped files</para> |
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| 100 | <indexterm zone="ch-system-bzip2 bunzip2"> |
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| 101 | <primary sortas="b-bunzip2">bunzip2</primary> |
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| 102 | </indexterm> |
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| 103 | </listitem> |
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| 104 | </varlistentry> |
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| 105 | |
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| 106 | <varlistentry id="bzcat"> |
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| 107 | <term><command>bzcat</command></term> |
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| 108 | <listitem> |
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| 109 | <para>Decompresses to standard output</para> |
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| 110 | <indexterm zone="ch-system-bzip2 bzcat"> |
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| 111 | <primary sortas="b-bzcat">bzcat</primary> |
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| 112 | </indexterm> |
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| 113 | </listitem> |
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| 114 | </varlistentry> |
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| 115 | |
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| 116 | <varlistentry id="bzcmp"> |
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| 117 | <term><command>bzcmp</command></term> |
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| 118 | <listitem> |
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| 119 | <para>Runs <command>cmp</command> on bzipped files</para> |
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| 120 | <indexterm zone="ch-system-bzip2 bzcmp"> |
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| 121 | <primary sortas="b-bzcmp">bzcmp</primary> |
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| 122 | </indexterm> |
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| 123 | </listitem> |
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| 124 | </varlistentry> |
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| 125 | |
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| 126 | <varlistentry id="bzdiff"> |
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| 127 | <term><command>bzdiff</command></term> |
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| 128 | <listitem> |
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| 129 | <para>Runs <command>diff</command> on bzipped files</para> |
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| 130 | <indexterm zone="ch-system-bzip2 bzdiff"> |
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| 131 | <primary sortas="b-bzdiff">bzdiff</primary> |
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| 132 | </indexterm> |
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| 133 | </listitem> |
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| 134 | </varlistentry> |
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| 135 | |
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| 136 | <varlistentry id="bzegrep"> |
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| 137 | <term><command>bzegrep</command></term> |
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| 138 | <listitem> |
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| 139 | <para>Runs <command>egrep</command> on bzipped files</para> |
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| 140 | <indexterm zone="ch-system-bzip2 bzegrep"> |
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| 141 | <primary sortas="b-bzegrep">bzegrep</primary> |
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| 142 | </indexterm> |
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| 143 | </listitem> |
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| 144 | </varlistentry> |
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| 145 | |
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| 146 | <varlistentry id="bzfgrep"> |
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| 147 | <term><command>bzfgrep</command></term> |
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| 148 | <listitem> |
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| 149 | <para>Runs <command>fgrep</command> on bzipped files</para> |
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| 150 | <indexterm zone="ch-system-bzip2 bzfgrep"> |
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| 151 | <primary sortas="b-bzfgrep">bzfgrep</primary> |
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| 152 | </indexterm> |
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| 153 | </listitem> |
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| 154 | </varlistentry> |
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| 155 | |
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[653cf49] | 156 | <varlistentry id="bzgrep"> |
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| 157 | <term><command>bzgrep</command></term> |
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| 158 | <listitem> |
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| 159 | <para>Runs <command>grep</command> on bzipped files</para> |
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| 160 | <indexterm zone="ch-system-bzip2 bzgrep"> |
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| 161 | <primary sortas="b-bzgrep">bzgrep</primary> |
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| 162 | </indexterm> |
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| 163 | </listitem> |
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| 164 | </varlistentry> |
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| 165 | |
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[3f8be484] | 166 | <varlistentry id="bzip2"> |
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| 167 | <term><command>bzip2</command></term> |
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| 168 | <listitem> |
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| 169 | <para>Compresses files using the Burrows-Wheeler block sorting text |
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| 170 | compression algorithm with Huffman coding; the compression rate is |
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| 171 | better than that achieved by more conventional compressors using |
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| 172 | <quote>Lempel-Ziv</quote> algorithms, like <command>gzip</command></para> |
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| 173 | <indexterm zone="ch-system-bzip2 bzip2"> |
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| 174 | <primary sortas="b-bzip2">bzip2</primary> |
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| 175 | </indexterm> |
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| 176 | </listitem> |
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| 177 | </varlistentry> |
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| 178 | |
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| 179 | <varlistentry id="bzip2recover"> |
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| 180 | <term><command>bzip2recover</command></term> |
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| 181 | <listitem> |
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| 182 | <para>Tries to recover data from damaged bzipped files</para> |
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| 183 | <indexterm zone="ch-system-bzip2 bzip2recover"> |
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| 184 | <primary sortas="b-bzip2recover">bzip2recover</primary> |
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| 185 | </indexterm> |
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| 186 | </listitem> |
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| 187 | </varlistentry> |
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| 188 | |
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| 189 | <varlistentry id="bzless"> |
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| 190 | <term><command>bzless</command></term> |
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| 191 | <listitem> |
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| 192 | <para>Runs <command>less</command> on bzipped files</para> |
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| 193 | <indexterm zone="ch-system-bzip2 bzless"> |
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| 194 | <primary sortas="b-bzless">bzless</primary> |
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| 195 | </indexterm> |
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| 196 | </listitem> |
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| 197 | </varlistentry> |
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| 198 | |
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| 199 | <varlistentry id="bzmore"> |
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| 200 | <term><command>bzmore</command></term> |
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| 201 | <listitem> |
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| 202 | <para>Runs <command>more</command> on bzipped files</para> |
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| 203 | <indexterm zone="ch-system-bzip2 bzmore"> |
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| 204 | <primary sortas="b-bzmore">bzmore</primary> |
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| 205 | </indexterm> |
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| 206 | </listitem> |
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| 207 | </varlistentry> |
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| 208 | |
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| 209 | <varlistentry id="libbz2"> |
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| 210 | <term><filename class="libraryfile">libbz2*</filename></term> |
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| 211 | <listitem> |
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| 212 | <para>The library implementing lossless, block-sorting data |
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| 213 | compression, using the Burrows-Wheeler algorithm</para> |
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| 214 | <indexterm zone="ch-system-bzip2 libbz2"> |
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| 215 | <primary sortas="c-libbz2*">libbz2*</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 | </variablelist> |
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| 221 | |
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| 222 | </sect2> |
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| 223 | |
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| 224 | </sect1> |
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