Sculpting text with regex, grep, sed, awk, emacs and vim (2012)

Re:Sculpting text with regex, grep, sed, awk, emacs and vim ... by shmerl on Tuesday July 29, 2014 @02:53AM (#8101005)

I didn't really compare, since grep marks --perl as "highly experimental". pcregrep on the other hand is around for a long time already.

One very useful feature in pcregrep is outputting the matched subpattern only. For example if you do:

    echo 'abcdefg' | pcregrep -o2  'a(bc)d(ef)g'

It will output only second matched subpattern.

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