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<head>
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<meta http-equiv="Content-Type" content=
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<title>
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5.12. Expect-5.45
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<body class="lfs" id="lfs-7.7-systemd">
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<div class="navheader">
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<h4>
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Linux From Scratch - Version 7.7-systemd
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</h4>
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<h3>
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第五章 构建临时系统
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</h3>
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<ul>
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<li class="prev">
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<a accesskey="p" href="tcl.html" title="Tcl-8.6.3">上一页</a>
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Tcl-8.6.3
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<a accesskey="n" href="dejagnu.html" title="DejaGNU-1.5.2">下一页</a>
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DejaGNU-1.5.2
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<li class="up">
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<a accesskey="u" href="chapter05.html" title=
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"第五章 构建临时系统">返回</a>
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<a accesskey="h" href="../index.html" title=
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"Linux From Scratch - Version 7.7-systemd">首页</a>
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</li>
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</ul>
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</div>
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<div class="wrap" lang="en" xml:lang="en">
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<h1 class="sect1">
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<a id="ch-tools-expect" name="ch-tools-expect"></a>5.12. Expect-5.45
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</h1>
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<div class="package" lang="en" xml:lang="en">
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<p>
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Expect软件包包含一个实现用脚本和其他交互式程序进行对话的程序。
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</p>
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<div class="segmentedlist">
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<div class="seglistitem">
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<div class="seg">
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<strong class="segtitle">估计构建时间：</strong>
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<span class="segbody">0.1 SBU</span>
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</div>
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<div class="seg">
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<strong class="segtitle">所需磁盘空间：</strong>
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<span class="segbody">4.6 MB</span>
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</div>
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</div>
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</div>
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</div>
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<div class="installation" lang="en" xml:lang="en">
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<h2 class="sect2">
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5.12.1. 安装Expect
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</h2>
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<p>
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首先，强制Expect的configure配置脚本使用<code class="filename">/bin/stty</code>替代宿主机系统里可能存在的<code class="filename">/usr/local/bin/stty</code>。这样可以保证我们的测试套件工具在工具链的最后一次构建能够正常。
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</p>
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<pre class="userinput">
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<kbd class="command">cp -v configure{,.orig}
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sed 's:/usr/local/bin:/bin:' configure.orig > configure</kbd>
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</pre>
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<p>
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现在配置Expect准备编译：
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</p>
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<pre class="userinput">
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<kbd class="command">./configure --prefix=/tools \
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--with-tcl=/tools/lib \
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--with-tclinclude=/tools/include</kbd>
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</pre>
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<div class="variablelist">
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<p class="title">
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<strong>配置脚本参数的含义：</strong>
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</p>
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<dl class="variablelist">
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<dt>
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<span class="term"><em class=
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"parameter"><code>--with-tcl=/tools/lib</code></em></span>
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</dt>
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<dd>
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<p>
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这个选项可以保证configure配置脚本会从临时工具目录里找Tcl的安装位置，而不是找到宿主机系统里可能现有的。
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</p>
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</dd>
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<dt>
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<span class="term"><em class=
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"parameter"><code>--with-tclinclude=/tools/include</code></em></span>
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</dt>
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<dd>
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<p>
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这个选项会给Expect显示地指定Tcl内部头文件的位置。通过这个选项可以避免<span class="command"><strong>configure</strong></span>脚本不能自动发现Tcl头文件位置的情况。
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</p>
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</dd>
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</dl>
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</div>
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<p>
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编译软件包：
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</p>
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<pre class="userinput">
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<kbd class="command">make</kbd>
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</pre>
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<p>
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现在编译已经完成。之前说过，不要求为本章中所构建的临时工具运行测试套件。不过你仍然要测试Expect的话可以用下面的命令：
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</p>
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<pre class="userinput">
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<kbd class="command">make test</kbd>
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</pre>
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<p>
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请注意Expect测试套件已知在某些宿主机特定情况下有过失败的情况，我们还没有完全把握。不过，在这里测试套件运行失败并不奇怪，也不认为是关键问题。
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</p>
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<p>
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安装软件包：
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</p>
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<pre class="userinput">
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<kbd class="command">make SCRIPTS="" install</kbd>
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</pre>
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<div class="variablelist">
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<p class="title">
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<strong>make参数的含义：</strong>
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</p>
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<dl class="variablelist">
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<dt>
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<span class="term"><em class=
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"parameter"><code>SCRIPTS=""</code></em></span>
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</dt>
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<dd>
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<p>
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这个变量可以避免安装额外的Expect脚本，没有必要。
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</p>
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</dd>
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</dl>
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</div>
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</div>
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<div class="content" lang="en" xml:lang="en">
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<h2 class="sect2">
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<a id="contents-expect" name="contents-expect"></a>5.12.2. Expect软件包内容
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</h2>
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<div class="segmentedlist">
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<div class="seglistitem">
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<div class="seg">
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<strong class="segtitle">安装的程序：</strong>
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<span class="segbody">expect</span>
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</div>
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<div class="seg">
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<strong class="segtitle">安装的库：</strong>
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<span class="segbody">libexpect-5.45.so</span>
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</div>
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</div>
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</div>
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<div class="variablelist">
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<h3>
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简短描述
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</h3>
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<table border="0" class="variablelist">
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<colgroup>
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<col align="left" valign="top" />
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<col />
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</colgroup>
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<tbody>
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<tr>
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<td>
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<p>
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<a id="expect" name="expect"></a><span class=
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"term"><span class=
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"command"><strong>expect</strong></span></span>
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</p>
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</td>
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<td>
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<p>
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基于脚本和其他交互式程序通信。
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</p>
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</td>
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</tr>
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<tr>
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<td>
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<p>
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<a id="libexpect" name="libexpect"></a><span class=
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"term"><code class=
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"filename">libexpect-5.45.so</code></span>
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</p>
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</td>
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<td>
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<p>
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包含一些函数允许Expect用作Tcl扩展或直接用于C/C++（不用Tcl）。
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</p>
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</td>
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</tr>
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</tbody>
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</table>
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</div>
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</div>
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</div>
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<div class="navfooter">
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<div class="book">
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<div class="titlepage">
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<div class="author">
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<span class="firstname">翻译团队：<a href="http://lctt.github.io/" target="_blank">LCTT</a></span>
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<span class="surname">译者/校对：<a href="http://github.com/zpl1025" target="_blank">zpl1025</a>/</span>
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</div>
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</div>
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</div>
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<ul>
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<li class="prev">
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<a accesskey="p" href="tcl.html" title="Tcl-8.6.3">上一页</a>
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<p>
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Tcl-8.6.3
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</p>
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</li>
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<li class="next">
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<a accesskey="n" href="dejagnu.html" title="DejaGNU-1.5.2">下一页</a>
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<p>
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DejaGNU-1.5.2
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</p>
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</li>
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<li class="up">
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<a accesskey="u" href="chapter05.html" title=
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"第五章 构建临时系统">返回</a>
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</li>
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<li class="home">
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<a accesskey="h" href="../index.html" title=
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"Linux From Scratch - Version 7.7-systemd">首页</a>
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</li>
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</ul>
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</div>
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</body>
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</html>
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