Messages in this thread |  | | From | David Laight <> | Subject | RE: [PATCH] tools: perf: Use "grep -E" instead of "egrep" | Date | Mon, 21 Nov 2022 17:05:35 +0000 |
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From: Ian Rogers > Sent: 21 November 2022 16:53 ... > My grep is 3.7 and has -E support. ...
As does grep 2.14 on my Ubuntu 13.04 system.
Which isn't that surprising. IIRC SYSV grep supported -E ~1990 and gnu grep probably had to match the syntax.
David
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