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Message-ID: <50f4e48bcdc4496f90f28d241ee42003@AcuMS.aculab.com>
Date: Mon, 21 Nov 2022 17:05:35 +0000
From: David Laight <David.Laight@...LAB.COM>
To: 'Ian Rogers' <irogers@...gle.com>,
Tiezhu Yang <yangtiezhu@...ngson.cn>
CC: Peter Zijlstra <peterz@...radead.org>,
Ingo Molnar <mingo@...hat.com>,
Arnaldo Carvalho de Melo <acme@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Alexander Shishkin <alexander.shishkin@...ux.intel.com>,
Jiri Olsa <jolsa@...nel.org>,
"Namhyung Kim" <namhyung@...nel.org>,
"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
"linux-perf-users@...r.kernel.org" <linux-perf-users@...r.kernel.org>
Subject: RE: [PATCH] tools: perf: Use "grep -E" instead of "egrep"
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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