lfs-book-zh_CN/chapter06/gzip.xml

<?xml version="1.0" encoding="UTF-8"?>
<!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>Gzip 软件包包含压缩和解压缩文件的程序。</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>安装 Gzip</title>

    <para>首先，进行 glibc-2.28 要求的一些修补：</para>

<screen><userinput remap="pre">sed -i 's/IO_ftrylockfile/IO_EOF_SEEN/' lib/*.c
echo "#define _IO_IN_BACKUP 0x100" >> lib/stdio-impl.h</userinput></screen>

    <para>准备安装 Gzip：</para>

<screen><userinput remap="configure">./configure --prefix=/usr</userinput></screen>

    <para>编译该软件包：</para>

<screen><userinput remap="make">make</userinput></screen>

    <para>运行以下命令以测试编译结果：</para>

<screen><userinput remap="test">make check</userinput></screen>

    <para>已知两个测试可能在 LFS 环境中失败：help-version 和 zmore。</para>

    <para>安装该软件包：</para>

<screen><userinput remap="install">make install</userinput></screen>

    <para>移动一个必须放置在根文件系统的程序：</para>

<screen><userinput remap="install">mv -v /usr/bin/gzip /bin</userinput></screen>

  </sect2>

  <sect2 id="contents-gzip" role="content">
    <title>Gzip 的内容</title>

    <segmentedlist>
      <segtitle>安装的程序</segtitle>

      <seglistitem>
        <seg>gunzip, gzexe, gzip, uncompress (与 gunzip 互为硬链接), zcat, zcmp, 
        zdiff, zegrep, zfgrep, zforce, zgrep, zless, zmore, 以及 znew</seg>
      </seglistitem>
    </segmentedlist>

    <variablelist>
      <bridgehead renderas="sect3">简要描述</bridgehead>
      <?dbfo list-presentation="list"?>
      <?dbhtml list-presentation="table"?>

      <varlistentry id="gunzip">
        <term><command>gunzip</command></term>
        <listitem>
          <para>解压缩 gzip 压缩的文件</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>创建自解压可执行文件</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>使用 Lempel-Ziv (LZ77) 编码压缩文件</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>解压压缩文件</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>将给定 gzip 压缩文件解压到标准输出</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>在 gzip 压缩文件上运行 <command>cmp</command></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>在 gzip 压缩文件上运行 <command>diff</command></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>在 gzip 压缩文件上运行 <command>egrep</command></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>在 gzip 压缩文件上运行 <command>fgrep</command></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>为给定所有文件中的 gzip 压缩文件确保
			  <filename class="extension">.gz</filename> 扩展名，
			  这样 <command>gzip</command> 就不会重复压缩它们；
			  在文件传输过程中文件名被截断时，这个命令很有用</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>在 gzip 压缩文件上运行 <command>grep</command></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>在 gzip 压缩文件上运行 <command>less</command></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>在 gzip 压缩文件上运行 <command>more</command></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>将 <command>compress</command> 格式压缩文件重新压缩为
          <command>gzip</command> 格式 —— 转换 <filename
          class="extension">.Z</filename> 文件为 <filename
          class="extension">.gz</filename> 文件</para>
          <indexterm zone="ch-system-gzip znew">
            <primary sortas="b-znew">znew</primary>
          </indexterm>
        </listitem>
      </varlistentry>

    </variablelist>

  </sect2>

</sect1>