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<?xml version="1.0" encoding="ISO-8859-1"?>
<!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
"http://www.oasis-open.org/docbook/xml/4.5/docbookx.dtd" [
<!ENTITY % general-entities SYSTEM "../general.ent">
%general-entities;
]>
<sect1 id="ch-system-gzip" role="wrap">
<?dbhtml filename="gzip.html"?>
<sect1info condition="script">
<productname>gzip</productname>
<productnumber>&gzip-version;</productnumber>
<address>&gzip-url;</address>
</sect1info>
<title>Gzip-&gzip-version;</title>
<indexterm zone="ch-system-gzip">
<primary sortas="a-Gzip">Gzip</primary>
</indexterm>
<sect2 role="package">
<title/>
<para>The Gzip package contains programs for compressing and decompressing
files.</para>
<segmentedlist>
<segtitle>&buildtime;</segtitle>
<segtitle>&diskspace;</segtitle>
<seglistitem>
<seg>&gzip-ch6-sbu;</seg>
<seg>&gzip-ch6-du;</seg>
</seglistitem>
</segmentedlist>
</sect2>
<sect2 role="installation">
<title>Installation of Gzip</title>
<para>Prepare Gzip for compilation:</para>
<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>
<para>Compile the package:</para>
<screen><userinput remap="make">make</userinput></screen>
<para>To test the results, issue:</para>
<screen><userinput remap="test">make check</userinput></screen>
<para>Two tests are known to fail in the LFS environment:
help-version and zmore.</para>
<para>Install the package:</para>
<screen><userinput remap="install">make install</userinput></screen>
<para>Move a program that needs to be on the root filesystem:</para>
<screen><userinput remap="install">mv -v /usr/bin/gzip /bin</userinput></screen>
</sect2>
<sect2 id="contents-gzip" role="content">
<title>Contents of Gzip</title>
<segmentedlist>
<segtitle>Installed programs</segtitle>
<seglistitem>
<seg>gunzip, gzexe, gzip, uncompress (hard link with gunzip), zcat, zcmp,
zdiff, zegrep, zfgrep, zforce, zgrep, zless, zmore, and znew</seg>
</seglistitem>
</segmentedlist>
<variablelist>
<bridgehead renderas="sect3">Short Descriptions</bridgehead>
<?dbfo list-presentation="list"?>
<?dbhtml list-presentation="table"?>
<varlistentry id="gunzip">
<term><command>gunzip</command></term>
<listitem>
<para>Decompresses gzipped files</para>
<indexterm zone="ch-system-gzip gunzip">
<primary sortas="b-gunzip">gunzip</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="gzexe">
<term><command>gzexe</command></term>
<listitem>
<para>Creates self-decompressing executable files</para>
<indexterm zone="ch-system-gzip gzexe">
<primary sortas="b-gzexe">gzexe</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="gzip">
<term><command>gzip</command></term>
<listitem>
<para>Compresses the given files using Lempel-Ziv (LZ77) coding</para>
<indexterm zone="ch-system-gzip gzip">
<primary sortas="b-gzip">gzip</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="uncompress">
<term><command>uncompress</command></term>
<listitem>
<para>Decompresses compressed files</para>
<indexterm zone="ch-system-gzip uncompress">
<primary sortas="b-uncompress">uncompress</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zcat">
<term><command>zcat</command></term>
<listitem>
<para>Decompresses the given gzipped files to standard output</para>
<indexterm zone="ch-system-gzip zcat">
<primary sortas="b-zcat">zcat</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zcmp">
<term><command>zcmp</command></term>
<listitem>
<para>Runs <command>cmp</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zcmp">
<primary sortas="b-zcmp">zcmp</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zdiff">
<term><command>zdiff</command></term>
<listitem>
<para>Runs <command>diff</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zdiff">
<primary sortas="b-zdiff">zdiff</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zegrep">
<term><command>zegrep</command></term>
<listitem>
<para>Runs <command>egrep</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zegrep">
<primary sortas="b-zegrep">zegrep</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zfgrep">
<term><command>zfgrep</command></term>
<listitem>
<para>Runs <command>fgrep</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zfgrep">
<primary sortas="b-zfgrep">zfgrep</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zforce">
<term><command>zforce</command></term>
<listitem>
<para>Forces a <filename class="extension">.gz</filename> extension on
all given files that are gzipped files, so that <command>gzip</command>
will not compress them again; this can be useful when file names were
truncated during a file transfer</para>
<indexterm zone="ch-system-gzip zforce">
<primary sortas="b-zforce">zforce</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zgrep">
<term><command>zgrep</command></term>
<listitem>
<para>Runs <command>grep</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zgrep">
<primary sortas="b-zgrep">zgrep</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zless">
<term><command>zless</command></term>
<listitem>
<para>Runs <command>less</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zless">
<primary sortas="b-zless">zless</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="zmore">
<term><command>zmore</command></term>
<listitem>
<para>Runs <command>more</command> on gzipped files</para>
<indexterm zone="ch-system-gzip zmore">
<primary sortas="b-zmore">zmore</primary>
</indexterm>
</listitem>
</varlistentry>
<varlistentry id="znew">
<term><command>znew</command></term>
<listitem>
<para>Re-compresses files from <command>compress</command> format to
<command>gzip</command> format—<filename
class="extension">.Z</filename> to <filename
class="extension">.gz</filename></para>
<indexterm zone="ch-system-gzip znew">
<primary sortas="b-znew">znew</primary>
</indexterm>
</listitem>
</varlistentry>
</variablelist>
</sect2>
</sect1>
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