1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.3//EN" "http://www.oasis-open.org/docbook/xml/4.3/docbookx.dtd" [
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3 | <!ENTITY % general-entities SYSTEM "../general.ent">
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4 | %general-entities;
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5 | ]>
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6 | <sect1 id="ch-system-gzip" xreflabel="Gzip">
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7 | <title>Gzip-&gzip-version;</title>
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8 | <?dbhtml filename="gzip.html"?>
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9 |
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10 | <indexterm zone="ch-system-gzip"><primary sortas="a-Gzip">Gzip</primary></indexterm>
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11 |
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12 | <para>The Gzip package contains programs for compressing and decompressing
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13 | files.</para>
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14 |
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15 | <screen>&buildtime; 0.1 SBU
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16 | &diskspace; 2.6 MB</screen>
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17 |
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18 | <para>Gzip installation depends on: Bash, Binutils, Coreutils, Diffutils,
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19 | GCC, Glibc, Grep, Make, Sed.</para>
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20 |
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21 |
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22 |
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23 | <sect2>
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24 | <title>Installation of Gzip</title>
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25 |
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26 | <para>Prepare Gzip for compilation:</para>
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27 |
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28 | <screen><userinput>./configure --prefix=/usr</userinput></screen>
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29 |
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30 | <para>The <command>gzexe</command> script has the location of the
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31 | <command>gzip</command> binary hard-wired into it. Because we later change
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32 | the location of the binary, the following command ensures that the new
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33 | location gets placed into the script:</para>
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34 |
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35 | <screen><userinput>cp gzexe.in{,.backup}
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36 | sed 's%"BINDIR"%/bin%' gzexe.in.backup > gzexe.in</userinput></screen>
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37 |
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38 | <para>Compile the package:</para>
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39 |
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40 | <screen><userinput>make</userinput></screen>
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41 |
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42 | <para>Install the package:</para>
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43 |
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44 | <screen><userinput>make install</userinput></screen>
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45 |
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46 | <para>Move the programs to the <filename class="directory">/bin</filename> directory:</para>
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47 |
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48 | <screen><userinput>mv /usr/bin/gzip /bin
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49 | rm /usr/bin/{gunzip,zcat}
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50 | ln -s gzip /bin/gunzip
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51 | ln -s gzip /bin/zcat
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52 | ln -s gunzip /bin/uncompress</userinput></screen>
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53 |
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54 | </sect2>
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55 |
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56 |
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57 | <sect2 id="contents-gzip"><title>Contents of Gzip</title>
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58 |
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59 | <para><emphasis>Installed programs</emphasis>: gunzip (link to gzip), gzexe,
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60 | gzip, uncompress (link to gunzip), zcat (link to gzip), zcmp, zdiff,
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61 | zegrep, zfgrep, zforce, zgrep, zless, zmore and znew</para>
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62 |
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63 | </sect2>
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64 |
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65 | <sect2><title>Short descriptions</title>
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66 |
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67 | <indexterm zone="ch-system-gzip gunzip"><primary sortas="b-gunzip">gunzip</primary></indexterm>
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68 | <para id="gunzip"><command>gunzip</command> decompresses gzipped files.</para>
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69 |
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70 | <indexterm zone="ch-system-gzip gzexe"><primary sortas="b-gzexe">gzexe</primary></indexterm>
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71 | <para id="gzexe"><command>gzexe</command> is used to create self-uncompressing
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72 | executable files.</para>
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73 |
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74 | <indexterm zone="ch-system-gzip gzip"><primary sortas="b-gzip">gzip</primary></indexterm>
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75 | <para id="gzip"><command>gzip</command> compresses the given files, using
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76 | Lempel-Ziv (LZ77) coding.</para>
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77 |
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78 | <indexterm zone="ch-system-gzip zcat"><primary sortas="b-zcat">zcat</primary></indexterm>
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79 | <para id="zcat"><command>zcat</command> uncompresses the given gzipped files to
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80 | standard output.</para>
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81 |
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82 | <indexterm zone="ch-system-gzip zcmp"><primary sortas="b-zcmp">zcmp</primary></indexterm>
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83 | <para id="zcmp"><command>zcmp</command> runs cmp on gzipped files.</para>
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84 |
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85 | <indexterm zone="ch-system-gzip zdiff"><primary sortas="b-zdiff">zdiff</primary></indexterm>
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86 | <para id="zdiff"><command>zdiff</command> runs diff on gzipped files.</para>
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87 |
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88 | <indexterm zone="ch-system-gzip zegrep"><primary sortas="b-zegrep">zegrep</primary></indexterm>
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89 | <para id="zegrep"><command>zegrep</command> runs egrep on gzipped files.</para>
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90 |
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91 | <indexterm zone="ch-system-gzip zfgrep"><primary sortas="b-zfgrep">zfgrep</primary></indexterm>
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92 | <para id="zfgrep"><command>zfgrep</command> runs fgrep on gzipped files.</para>
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93 |
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94 | <indexterm zone="ch-system-gzip zforce"><primary sortas="b-zforce">zforce</primary></indexterm>
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95 | <para id="zforce"><command>zforce</command> forces a .gz extension on all given files
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96 | that are gzipped files, so that gzip will not compress them again. This can be
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97 | useful when file names were truncated during a file transfer.</para>
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98 |
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99 | <indexterm zone="ch-system-gzip zgrep"><primary sortas="b-zgrep">zgrep</primary></indexterm>
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100 | <para id="zgrep"><command>zgrep</command> runs grep on gzipped files.</para>
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101 |
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102 | <indexterm zone="ch-system-gzip zless"><primary sortas="b-zless">zless</primary></indexterm>
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103 | <para id="zless"><command>zless</command> runs less on gzipped files.</para>
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104 |
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105 | <indexterm zone="ch-system-gzip zmore"><primary sortas="b-zmore">zmore</primary></indexterm>
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106 | <para id="zmore"><command>zmore</command> runs more on gzipped files.</para>
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107 |
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108 | <indexterm zone="ch-system-gzip znew"><primary sortas="b-znew">znew</primary></indexterm>
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109 | <para id="znew"><command>znew</command> re-compresses files from compress format
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110 | to gzip format -- .Z to .gz.</para>
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111 |
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112 | </sect2>
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113 |
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114 |
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115 |
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116 | </sect1>
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