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6.37. Bash-3.0
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Linux From Scratch - Version 6.1
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Chapter 6. 安装系统基础软件
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<h1 class="sect1">
6.37. Bash-3.0
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<p>Bourne-Again Shell 的缩写,它在UNIX系统中作为命令行解释器被广泛使用。</p>
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<strong><span class="segtitle">预计编译时间:</span></strong> <span class="seg">1.2 SBU</span>
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<strong><span class="segtitle">所需磁盘空间:</span></strong> <span class="seg">20.6 MB</span>
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<strong><span class="segtitle">安装依赖于:</span></strong> <span class="seg">Binutils, Coreutils, Diffutils, Gawk, GCC, Glibc, Grep, Make, Ncurses, Sed.</span>
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6.37.1. 安装 Bash
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<p>
下面的补丁修正了 Bash 的不少 bug ,还包括
Bash 有时在命令行上只显示33个字符就转到下一行的问题:</p>
<pre class="userinput"><kbd class="command">patch -Np1 -i ../bash-3.0-fixes-3.patch</kbd></pre>
<p>
Bash 在使用新版本的 Glibc 进行编译时还会出问题,下面的补丁可以修正它:</p>
<pre class="userinput"><kbd class="command">patch -Np1 -i ../bash-3.0-avoid_WCONTINUED-1.patch</kbd></pre>
<p>为编译 Bash 做准备:</p>
<pre class="userinput"><kbd class="command">./configure --prefix=/usr --bindir=/bin \
--without-bash-malloc --with-installed-readline</kbd></pre>
<p>
配置选项的含义:
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<span class="term"><em class="parameter"><tt>--with-installed-readline</tt></em></span>
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这个选项指示 Bash 使用前面刚刚安装的 <tt class="filename">readline</tt> 库,而不是它自己附带的那个库。</p>
</dd>
</dl>
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<p>编译软件包:</p>
<pre class="userinput"><kbd class="command">make</kbd></pre>
<p>
要测试结果,请运行: <strong class="userinput"><tt>make
tests</tt></strong>
</p>
<p>
安装软件包:
</p>
<pre class="userinput"><kbd class="command">make install</kbd></pre>
<p>
新安装的 <span><strong class="command">bash</strong></span> 程序(代替当前正在使用的): </p>
<pre class="userinput"><kbd class="command">exec /bin/bash --login +h</kbd></pre>
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注意
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<p>
上面命令里使用的参数指示 <span><strong class="command">bash</strong></span> 产生一个交互式的登陆
shell 并且继续禁用哈希功能,以便新的程序一旦被安装就立即投入使用。</p>
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<h2 class="sect2">
6.37.2. Bash 的内容 </h2>
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<strong><span class="segtitle">安装的程序:</span></strong> <span class="seg">bash, bashbug, sh(链接到 bash)</span>
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<a id="id3328650" name="id3328650"></a>简要描述</h3>
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<td>
<a id="bash" name="bash"></a><span class="term"><span><strong class="command">bash</strong></span></span>
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<td>
<p>
作为命令行解释器被广泛使用。它能在执行命令前解释非常复杂的命令行参数,这使它成为一个强大的工具。 </p>
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<td>
<a id="bashbug" name="bashbug"></a><span class="term"><span><strong class="command">bashbug</strong></span></span>
</td>
<td>
<p>帮助用户用标准格式编写和提交有关 <strong class="command">bash</strong> 的bug报告的脚本</p>
</td>
</tr>
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<td>
<a id="sh" name="sh"></a><span class="term"><span><strong class="command">sh</strong></span></span>
</td>
<td>
<p>是一个到 <strong class="command">bash</strong> 的链接。当运行 <strong class="command">sh</strong> 的时候, <strong class="command">bash</strong> 会尽量模仿老的 <strong class="command">sh</strong> 历史环境来运行,同时遵循 POSIX 标准。</p>
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