Linux sed 完全匹配
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Sed match exact
提问by Numpty
I'm currently using 's/string/new_string/g'to go through some CSV files, however I'm running into difficulty in the following scenario:
我目前正在使用's/string/new_string/g'一些 CSV 文件，但是在以下情况下我遇到了困难：
I want to replace instances of '192.168.0.11', however it's also catching instances of '192.168.0.111'.
我想替换 的实例'192.168.0.11'，但是它也在捕获'192.168.0.111'.
How can I ensure sed only grabs '192.168.0.11'and not '192.168.0.111'? I'll obviously have to repeat this for many variables, so something easily scalable would be appreciated.
我怎样才能确保 sed 只抓取'192.168.0.11'而不是抓取'192.168.0.111'？显然，我必须对许多变量重复这一点，因此很容易扩展的东西将不胜感激。
Thanks!
谢谢！
采纳答案by dave
I'm not sure what the regex you are using is, but if you want an exact match of '192.168.0.11' you can use:
s/\<192\.168\.0\.11\>//g
我不确定您使用的正则表达式是什么，但如果您想要完全匹配的 '192.168.0.11'，您可以使用：
s/\<192\.168\.0\.11\>//g
The \<\>force an exact match.
该\<\>部队的精确匹配。
