1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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2 | <!DOCTYPE section [
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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 | <section xmlns="http://docbook.org/docbook-ng"
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7 | xml:id="ch-system-gzip" xreflabel="Gzip" role="wrap">
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8 | <title>Gzip-&gzip-version;</title>
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9 | <?dbhtml filename="gzip.html"?>
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10 |
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11 | <indexterm zone="ch-system-gzip"><primary sortas="a-Gzip">Gzip</primary></indexterm>
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12 |
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13 | <section role="package"><title/>
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14 | <para>The Gzip package contains programs for compressing and decompressing
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15 | files.</para>
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16 |
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17 | <segmentedlist>
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18 | <segtitle>&buildtime;</segtitle>
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19 | <segtitle>&diskspace;</segtitle>
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20 | <seglistitem><seg>0.1 SBU</seg><seg>2.6 MB</seg></seglistitem>
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21 | </segmentedlist>
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22 |
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23 | <segmentedlist>
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24 | <segtitle>Gzip installation depends on</segtitle>
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25 | <seglistitem><seg>Bash, Binutils, Coreutils, Diffutils,
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26 | GCC, Glibc, Grep, Make, Sed</seg></seglistitem>
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27 | </segmentedlist>
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28 | </section>
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29 |
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30 | <section role="installation">
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31 | <title>Installation of Gzip</title>
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32 |
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33 | <para>Prepare Gzip for compilation:</para>
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34 |
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35 | <screen><userinput>./configure --prefix=/usr</userinput></screen>
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36 |
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37 | <para>The <command>gzexe</command> script has the location of the
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38 | <command>gzip</command> binary hard-wired into it. Because we later change
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39 | the location of the binary, the following command ensures that the new
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40 | location gets placed into the script:</para>
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41 |
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42 | <screen><userinput>sed -i 's@"BINDIR"@/bin@g' gzexe.in</userinput></screen>
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43 |
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44 | <para>Compile the package:</para>
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45 |
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46 | <screen><userinput>make</userinput></screen>
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47 |
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48 | <para>Install the package:</para>
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49 |
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50 | <screen><userinput>make install</userinput></screen>
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51 |
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52 | <para>Move the programs to the <filename class="directory">/bin</filename> directory:</para>
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53 |
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54 | <screen><userinput>mv /usr/bin/gzip /bin
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55 | rm /usr/bin/{gunzip,zcat}
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56 | ln -s gzip /bin/gunzip
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57 | ln -s gzip /bin/zcat
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58 | ln -s gunzip /bin/uncompress</userinput></screen>
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59 |
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60 | </section>
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61 |
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62 |
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63 | <section xml:id="contents-gzip" role="content"><title>Contents of Gzip</title>
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64 |
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65 | <segmentedlist>
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66 | <segtitle>Installed programs</segtitle>
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67 | <seglistitem><seg>gunzip (link to gzip), gzexe,
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68 | gzip, uncompress (link to gunzip), zcat (link to gzip), zcmp, zdiff,
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69 | zegrep, zfgrep, zforce, zgrep, zless, zmore and znew</seg></seglistitem>
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70 | </segmentedlist>
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71 |
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72 | <variablelist><title>Short descriptions</title>
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73 |
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74 | <varlistentry xml:id="gunzip">
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75 | <term><command>gunzip</command></term>
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76 | <listitem>
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77 | <indexterm zone="ch-system-gzip gunzip"><primary sortas="b-gunzip">gunzip</primary></indexterm>
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78 | <para>decompresses gzipped files.</para>
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79 | </listitem>
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80 | </varlistentry>
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81 |
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82 | <varlistentry xml:id="gzexe">
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83 | <term><command>gzexe</command></term>
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84 | <listitem>
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85 | <indexterm zone="ch-system-gzip gzexe"><primary sortas="b-gzexe">gzexe</primary></indexterm>
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86 | <para>is used to create self-uncompressing executable files.</para>
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87 | </listitem>
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88 | </varlistentry>
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89 |
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90 | <varlistentry xml:id="gzip">
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91 | <term><command>gzip</command></term>
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92 | <listitem>
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93 | <indexterm zone="ch-system-gzip gzip"><primary sortas="b-gzip">gzip</primary></indexterm>
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94 | <para>compresses the given files, using Lempel-Ziv (LZ77) coding.</para>
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95 | </listitem>
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96 | </varlistentry>
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97 |
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98 | <varlistentry xml:id="zcat">
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99 | <term><command>zcat</command></term>
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100 | <listitem>
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101 | <indexterm zone="ch-system-gzip zcat"><primary sortas="b-zcat">zcat</primary></indexterm>
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102 | <para>uncompresses the given gzipped files to standard output.</para>
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103 | </listitem>
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104 | </varlistentry>
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105 |
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106 | <varlistentry xml:id="zcmp">
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107 | <term><command>zcmp</command></term>
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108 | <listitem>
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109 | <indexterm zone="ch-system-gzip zcmp"><primary sortas="b-zcmp">zcmp</primary></indexterm>
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110 | <para>runs <command>cmp</command> on gzipped files.</para>
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111 | </listitem>
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112 | </varlistentry>
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113 |
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114 | <varlistentry xml:id="zdiff">
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115 | <term><command>zdiff</command></term>
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116 | <listitem>
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117 | <indexterm zone="ch-system-gzip zdiff"><primary sortas="b-zdiff">zdiff</primary></indexterm>
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118 | <para>runs <command>diff</command> on gzipped files.</para>
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119 | </listitem>
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120 | </varlistentry>
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121 |
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122 | <varlistentry xml:id="zegrep">
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123 | <term><command>zegrep</command></term>
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124 | <listitem>
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125 | <indexterm zone="ch-system-gzip zegrep"><primary sortas="b-zegrep">zegrep</primary></indexterm>
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126 | <para>runs <command>egrep</command> on gzipped files.</para>
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127 | </listitem>
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128 | </varlistentry>
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129 |
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130 | <varlistentry xml:id="zfgrep">
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131 | <term><command>zfgrep</command></term>
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132 | <listitem>
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133 | <indexterm zone="ch-system-gzip zfgrep"><primary sortas="b-zfgrep">zfgrep</primary></indexterm>
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134 | <para>runs <command>fgrep</command> on gzipped files.</para>
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135 | </listitem>
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136 | </varlistentry>
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137 |
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138 | <varlistentry xml:id="zforce">
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139 | <term><command>zforce</command></term>
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140 | <listitem>
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141 | <indexterm zone="ch-system-gzip zforce"><primary sortas="b-zforce">zforce</primary></indexterm>
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142 | <para>forces a <filename class="extension">.gz</filename> extension on all given files
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143 | that are gzipped files, so that <command>gzip</command> will not compress them again. This can be
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144 | useful when file names were truncated during a file transfer.</para>
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145 | </listitem>
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146 | </varlistentry>
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147 |
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148 | <varlistentry xml:id="zgrep">
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149 | <term><command>zgrep</command></term>
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150 | <listitem>
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151 | <indexterm zone="ch-system-gzip zgrep"><primary sortas="b-zgrep">zgrep</primary></indexterm>
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152 | <para>runs <command>grep</command> on gzipped files.</para>
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153 | </listitem>
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154 | </varlistentry>
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155 |
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156 | <varlistentry xml:id="zless">
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157 | <term><command>zless</command></term>
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158 | <listitem>
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159 | <indexterm zone="ch-system-gzip zless"><primary sortas="b-zless">zless</primary></indexterm>
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160 | <para>runs <command>less</command> on gzipped files.</para>
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161 | </listitem>
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162 | </varlistentry>
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163 |
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164 | <varlistentry xml:id="zmore">
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165 | <term><command>zmore</command></term>
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166 | <listitem>
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167 | <indexterm zone="ch-system-gzip zmore"><primary sortas="b-zmore">zmore</primary></indexterm>
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168 | <para>runs <command>more</command> on gzipped files.</para>
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169 | </listitem>
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170 | </varlistentry>
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171 |
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172 | <varlistentry xml:id="znew">
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173 | <term><command>znew</command></term>
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174 | <listitem>
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175 | <indexterm zone="ch-system-gzip znew"><primary sortas="b-znew">znew</primary></indexterm>
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176 | <para>re-compresses files from <command>compress</command> format to <command>gzip</command> format
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177 | -- <filename class="extension">.Z</filename> to <filename class="extension">.gz</filename>.</para>
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178 | </listitem>
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179 | </varlistentry>
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180 | </variablelist>
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181 |
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182 | </section>
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183 |
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184 | </section>
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