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Some regex tests with grep, sed and AWK

Posted by Bob_Mesibov on · Post a comment
BASHing data; By Bob Mesibov 		Mail this story
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In my data work I regularly do searching and filtering with GNU grep (version 3.3), GNU sed (4.7) and GNU AWK (4.2.1). I don't know if they all use the same regex engine, but I've noticed differences in regex speed between these three programs. This post documents some of the differences.

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