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Date: Thu, 22 Oct 2009 20:57:52 -0700
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Subject: Re: [9fans] egrep in Plan9
From: Russ Cox <rsc@swtch.com>
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
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On Thu, Oct 22, 2009 at 8:40 PM, Dimitry Golubovsky
<golubovsky@gmail.com> wrote:
> Does there exist a =C2=A0Plan9 version of egrep or grep that understands =
-E
> option like GNU grep does?

In Plan 9, all tools accept the same regular expression syntax,
and that syntax is the one used by the Unix egrep.

#!/bin/rc
if(~ $1 -E) shift
exec grep $*

Russ