shell正则匹配ip（学习shell笔记七）

[[email protected] ~]# vim test.txt 2014-08-17 20140907 14 03 22 192.168.1.2 121.168.2.3 123-212-2-3 [[email protected] ~]# grep "[0-9]\{1,3\}[.][0-9]\{1,3\}[.][0-9]\{1,3\}[.][0-9]\{1,3\}" test.txt 19

>>阅读原文<<