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<title><![CDATA[linuxの飘扬]]></title> 
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<copyright><![CDATA[linuxの飘扬]]></copyright>
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<link>https://www.linuxfly.org/post/546/</link>
<title><![CDATA[[转]Bash获得子进程返回值的方法]]></title> 
<author>linuxing &lt;emos#linuxfly.org&gt;</author>
<category><![CDATA[Bash]]></category>
<pubDate>Wed, 25 Aug 2010 03:57:58 +0000</pubDate> 
<guid>https://www.linuxfly.org/post/546/</guid> 
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	&nbsp;&nbsp;&nbsp;&nbsp;我们用“&”把进程放入后台以后，如果需要了解进程的执行情况，可以使用wait函数。默认情况下wait会等待任意子进程结束但是不会返回子进程的返回值。而以子进程的pid作为参数调用wait时，wait便能够返回该子进程的退出状态了。<br/><br/>............<br/><br/>Tags - <a href="https://www.linuxfly.org/tags/bash/" rel="tag">bash</a> , <a href="https://www.linuxfly.org/tags/wait/" rel="tag">wait</a>
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<link>https://www.linuxfly.org/post/546/#blogcomment2393</link>
<title><![CDATA[[评论] [转]Bash获得子进程返回值的方法]]></title> 
<author>博爱老头 &lt;user@domain.com&gt;</author>
<category><![CDATA[评论]]></category>
<pubDate>Wed, 25 Aug 2010 07:58:35 +0000</pubDate> 
<guid>https://www.linuxfly.org/post/546/#blogcomment2393</guid> 
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<![CDATA[ 
	嗯。。这个是常用的命令。。
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