如何用sed删除第三个点后的东东

bianlimit

下班回去,继续研究...

kernel69

1. perl -lne '/((?:\w+\.){2}\w+)/ and print $1'

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回复 1# bianlimit


   

bianlimit

似乎 sed 在 \(   \) 中不支持 \|  

还是用 grep...

dWX56896

我也新手写个我自己理解的

1. sed 's/\(.*\..*\..*\)\.\(.*\)/\1/'

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dWX56896

回复 11# Shell_HAT

试了下 貌似不可以阿
djy@game-rd10:~> echo "11.22.33.44"|sed -r 's/([^.].+{3}).*/\1/'
11.22.33.44


djy@game-rd10:~> sed --version
GNU sed version 4.1.4
Copyright (C) 2003 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE,
to the extent permitted by law.

灿烂小猪

1. sed 's/^\([^.]*\.[^.]*\.[^.]*\).*$/\1/' urfile

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Shell_HAT

回复 25# dWX56896

1. sed -r 's/([^.]+(.[^.]+){2}).*/\1/' urfile

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