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6.34.&nbsp;Grep-2.21
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Linux From Scratch - Version 7.7-systemd
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第六章&nbsp;安装基本的系统软件
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<h1 class="sect1">
<a id="ch-system-grep" name="ch-system-grep"></a>6.34. Grep-2.21
</h1>
<div class="package" lang="en" xml:lang="en">
<p>
Grep 软件包包含用于在文件中搜索的程序。
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<div class="segmentedlist">
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<strong class="segtitle">大概编译时间:</strong>
<span class="segbody">0.4 SBU</span>
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<div class="seg">
<strong class="segtitle">需要磁盘空间:</strong>
<span class="segbody">30 MB</span>
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<div class="installation" lang="en" xml:lang="en">
<h2 class="sect2">
6.34.1. 安装 Grep
</h2>
<p>
首先修复上游标记的潜在安全问题:
</p>
<pre class="userinput">
<kbd class=
"command">sed -i -e '/tp++/a if (ep &lt;= tp) break;' src/kwset.c</kbd>
</pre>
<p>
准备编译 Grep
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<pre class="userinput">
<kbd class="command">./configure --prefix=/usr --bindir=/bin</kbd>
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编译软件包:
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<kbd class="command">make</kbd>
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用以下命令测试结果:
</p>
<pre class="userinput">
<kbd class="command">make check</kbd>
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安装软件包:
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<kbd class="command">make install</kbd>
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<h2 class="sect2">
<a id="contents-grep" name="contents-grep"></a>6.34.2. Grep 的内容
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<div class="segmentedlist">
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<strong class="segtitle">安装的程序:</strong>
<span class="segbody">egrep, fgrep, 和 grep</span>
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<h3>
简要介绍
</h3>
<table border="0" class="variablelist">
<colgroup>
<col align="left" valign="top" />
<col />
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<tbody>
<tr>
<td>
<p>
<a id="egrep" name="egrep"></a><span class=
"term"><span class=
"command"><strong>egrep</strong></span></span>
</p>
</td>
<td>
<p>
打印匹配扩展正则表达式的行
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="fgrep" name="fgrep"></a><span class=
"term"><span class=
"command"><strong>fgrep</strong></span></span>
</p>
</td>
<td>
<p>
打印匹配固定字符串列表的行
</p>
</td>
</tr>
<tr>
<td>
<p>
<a id="grep" name="grep"></a><span class=
"term"><span class=
"command"><strong>grep</strong></span></span>
</p>
</td>
<td>
<p>
打印匹配基本正则表达式的行
</p>
</td>
</tr>
</tbody>
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<span class="firstname">翻译团队:<a href="http://lctt.github.io/" target="_blank">LCTT</a></span>
<span class="surname">译者/校对:<a href="http://github.com/ictlyh" target="_blank">ictlyh</a>,</span>
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