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by lancebeet
1521 days ago
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I was also curious about this as I use grep -P (for PCRE regexes) if I need to use them. Looking at the manual, lookaheads and lookbehinds don't seem to be supported by regular gnu grep or grep -E, so you do need to use grep -P for them. https://www.gnu.org/software/grep/manual/grep.pdf |
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