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	<title>可可熊的窝 &#187; JavaScript</title>
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		<title>shell脚本解题6</title>
		<link>http://cocobear.info/blog/2008/08/19/07-issues-shell/</link>
		<comments>http://cocobear.info/blog/2008/08/19/07-issues-shell/#comments</comments>
		<pubDate>Tue, 19 Aug 2008 07:42:19 +0000</pubDate>
		<dc:creator>可可熊</dc:creator>
				<category><![CDATA[Shell]]></category>
		<category><![CDATA[编程相关]]></category>
		<category><![CDATA[awk]]></category>
		<category><![CDATA[JavaScript]]></category>
		<category><![CDATA[sed]]></category>

		<guid isPermaLink="false">http://cocobear.info/blog/?p=297</guid>
		<description><![CDATA[问题： 执行命令前暂时回home目录，执行后跳回来 解法： 1. (cd ~; ls; ) 使用子shell的方式去执行命令； 把这行 gs.AddMany( [b_cls,b_bck,t_blank,b_close,b_7,b_8,b_9,b_div,b_4,b_5,b_6,b_mul,b_1,b_2,b_3,b_minus,b_0,b_dot,b_equal,b_plus, ]) 进行替换，每一个元素替换为类似(b_cls,0,EXPAND)这样 解法1. sed 's/[b&#124;t]_[^,]*,/(&#38;0,EXPAND)/g' 如果使用 's/[b&#124;t]_.*?,/(&#38;0,EXPAND)/g' 则不能得出正确的结果，因为sed不支持.*?这样的非贪婪匹配；解法中使用[^,]避免了贪婪匹配。 有如下内容,想要获取 8B E5 55 这些内容： [cocobear@cocobear ~]$ cat file.txt 00401038 8B E5 mov esp,ebp 0040103A 55 push ebp 0040103B 8B EC mov ebp,esp 0040103D 33 FF xor edi,edi 0040103F 57 push edi 004010A9 FF D0 [...]]]></description>
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