shell的正则匹配IP
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[root@master ~]
# cat test.txt
2014-08-17
20140907
14 03 22
aa.aa.bb.cc
af.23.67.90
ffffff
oo.09.0f.87.90
192.168.1.2
121.168.2.3
0987238349
999.999.99.999
123-212-2-3
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用grep
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[root@master ~]
# egrep "((25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)" test.txt
192.168.1.2
121.168.2.3
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本文转自 Forande 51CTO博客，原文链接:http://blog.51cto.com/853056088/2060330
