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6.56.&nbsp;Gzip-1.6
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Linux From Scratch - Version 7.7-systemd
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<h3>
Chapter&nbsp;6.&nbsp;Installing Basic System Software
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<h1 class="sect1">
<a id="ch-system-gzip" name="ch-system-gzip"></a>6.56. Gzip-1.6
</h1>
<div class="package" lang="en" xml:lang="en">
<p>
The Gzip package contains programs for compressing and
decompressing files.
</p>
<div class="segmentedlist">
<div class="seglistitem">
<div class="seg">
<strong class="segtitle">Approximate build time:</strong>
<span class="segbody">0.1 SBU</span>
</div>
<div class="seg">
<strong class="segtitle">Required disk space:</strong>
<span class="segbody">20 MB</span>
</div>
</div>
</div>
</div>
<div class="installation" lang="en" xml:lang="en">
<h2 class="sect2">
6.56.1. Installation of Gzip
</h2>
<p>
Prepare Gzip for compilation:
</p>
<pre class="userinput">
<kbd class="command">./configure --prefix=/usr --bindir=/bin</kbd>
</pre>
<p>
Compile the package:
</p>
<pre class="userinput">
<kbd class="command">make</kbd>
</pre>
<p>
To test the results, issue:
</p>
<pre class="userinput">
<kbd class="command">make check</kbd>
</pre>
<p>
Install the package:
</p>
<pre class="userinput">
<kbd class="command">make install</kbd>
</pre>
<p>
Move some programs that do not need to be on the root filesystem:
</p>
<pre class="userinput">
<kbd class="command">mv -v /bin/{gzexe,uncompress,zcmp,zdiff,zegrep} /usr/bin
mv -v /bin/{zfgrep,zforce,zgrep,zless,zmore,znew} /usr/bin</kbd>
</pre>
</div>
<div class="content" lang="en" xml:lang="en">
<h2 class="sect2">
<a id="contents-gzip" name="contents-gzip"></a>6.56.2. Contents of
Gzip
</h2>
<div class="segmentedlist">
<div class="seglistitem">
<div class="seg">
<strong class="segtitle">Installed programs:</strong>
<span class="segbody">gunzip, gzexe, gzip, uncompress, zcat,
zcmp, zdiff, zegrep, zfgrep, zforce, zgrep, zless, zmore, and
znew</span>
</div>
</div>
</div>
<div class="variablelist">
<h3>
Short Descriptions
</h3>
<table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top" />
<col />
</colgroup>
<tbody>
<tr>
<td>
<p>
<a id="gunzip" name="gunzip"></a><span class=
"term"><span class=
"command"><strong>gunzip</strong></span></span>
</p>
</td>
<td>
<p>
Decompresses gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="gzexe" name="gzexe"></a><span class=
"term"><span class=
"command"><strong>gzexe</strong></span></span>
</p>
</td>
<td>
<p>
Creates self-decompressing executable files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="gzip" name="gzip"></a><span class=
"term"><span class=
"command"><strong>gzip</strong></span></span>
</p>
</td>
<td>
<p>
Compresses the given files using Lempel-Ziv (LZ77) coding
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="uncompress" name="uncompress"></a><span class=
"term"><span class=
"command"><strong>uncompress</strong></span></span>
</p>
</td>
<td>
<p>
Decompresses compressed files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zcat" name="zcat"></a><span class=
"term"><span class=
"command"><strong>zcat</strong></span></span>
</p>
</td>
<td>
<p>
Decompresses the given gzipped files to standard output
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zcmp" name="zcmp"></a><span class=
"term"><span class=
"command"><strong>zcmp</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>cmp</strong></span> on
gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zdiff" name="zdiff"></a><span class=
"term"><span class=
"command"><strong>zdiff</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>diff</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zegrep" name="zegrep"></a><span class=
"term"><span class=
"command"><strong>zegrep</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>egrep</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zfgrep" name="zfgrep"></a><span class=
"term"><span class=
"command"><strong>zfgrep</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>fgrep</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zforce" name="zforce"></a><span class=
"term"><span class=
"command"><strong>zforce</strong></span></span>
</p>
</td>
<td>
<p>
Forces a <code class="filename">.gz</code> extension on
all given files that are gzipped files, so that
<span class="command"><strong>gzip</strong></span> will
not compress them again; this can be useful when file
names were truncated during a file transfer
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zgrep" name="zgrep"></a><span class=
"term"><span class=
"command"><strong>zgrep</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>grep</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zless" name="zless"></a><span class=
"term"><span class=
"command"><strong>zless</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>less</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="zmore" name="zmore"></a><span class=
"term"><span class=
"command"><strong>zmore</strong></span></span>
</p>
</td>
<td>
<p>
Runs <span class="command"><strong>more</strong></span>
on gzipped files
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="znew" name="znew"></a><span class=
"term"><span class=
"command"><strong>znew</strong></span></span>
</p>
</td>
<td>
<p>
Re-compresses files from <span class=
"command"><strong>compress</strong></span> format to
<span class="command"><strong>gzip</strong></span>
format&mdash;<code class="filename">.Z</code> to
<code class="filename">.gz</code>
</p>
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