Use regex with sed to replace spaces by underscore
Question
I need to replace all the matches of the following PCRE by underscores in a file with sed.
/(?:^Node-path: |\G)\S+\K\h+/gm
I have tried escaping parenthesis, remove espacing of G, S, K... but still can't get it to work.
Anyone can help plase?
1 answers
solution1
2 ACCPTED 2015-11-23 21:56:25
If your sed is gnu sed, you can mix NUMBER and g modifier in order to skip the first space:
sed '/^Node-path:/s/ /_/2g'
If your sed is not gnu sed, the NUMBER+g may not be supported. However you can do this trick:
sed '/^Node-path:/{s/ /_/g;s/_/ /}'
or
sed '/^Node-path:/{s/ /_/g;s/:_/: /}'
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