Symantec 赛门铁克招聘 Security Response Engineer
2011-12-30 11:38
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A段地址:1.0.0.0 - 126.255.255.255
正则表达式:
egrep '^((12[0-6]|1[0-1]\d|[[:digit:]][[:digit:]]?)\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
B段地址:128.0.0.0 - 191.255.255.255
正则表达式:
egrep '^((19[0-1]|1[3-8]\d|12[8-9])\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
C段地址:192.0.0.0 - 223.255.255.255
正则表达式:
egrep '^((22[0-3]|2[0-1]\d|19[2-9])\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
其中格式为:egrep '^正则表达式$',^ 代表开始 $ 代表结束
上述正则表达式中\d 最好用 [[:digit:]]代替,而且当两个[[:digit:]]]连着出现时一定不要用\d
个人总结希望高手多多指教!
本文出自 “庞飞” 博客,请务必保留此出处http://pangfei.blog.51cto.com/8832397/1404792
正则表达式:
egrep '^((12[0-6]|1[0-1]\d|[[:digit:]][[:digit:]]?)\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
B段地址:128.0.0.0 - 191.255.255.255
正则表达式:
egrep '^((19[0-1]|1[3-8]\d|12[8-9])\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
C段地址:192.0.0.0 - 223.255.255.255
正则表达式:
egrep '^((22[0-3]|2[0-1]\d|19[2-9])\.)((25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)\.){2}(25[0-5]|2[0-4]\d|[0-1]?[[:digit:]][[:digit:]]?)$' file2
其中格式为:egrep '^正则表达式$',^ 代表开始 $ 代表结束
上述正则表达式中\d 最好用 [[:digit:]]代替,而且当两个[[:digit:]]]连着出现时一定不要用\d
个人总结希望高手多多指教!
本文出自 “庞飞” 博客,请务必保留此出处http://pangfei.blog.51cto.com/8832397/1404792
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