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Date: Thu, 20 Oct 2005 20:03:05 -0400
From: Parv <parv@pair.com>
To: Jung-uk Kim <jkim@FreeBSD.org>
Message-ID: <20051021000305.GA11603@holestein.holy.cow>
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	James Long <stable@museum.rain.com>
References: <20051020194725.GA10376@ns.museum.rain.com>
	<20051020205704.GC4000@holestein.holy.cow>
	<200510201711.49382.jkim@FreeBSD.org>
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Cc: James Long <stable@museum.rain.com>, freebsd-stable@FreeBSD.org,
	f-q <freebsd-questions@FreeBSD.org>
Subject: Re: bzegrep behaviour not consistent with egrep?
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in message <200510201711.49382.jkim@FreeBSD.org>,
wrote Jung-uk Kim thusly...
>
> On Thursday 20 October 2005 04:57 pm, Parv wrote:
> > in message <20051020194725.GA10376@ns.museum.rain.com>,
> > wrote James Long thusly...
...
> > > $ bzegrep "38436|41640" /var/log/maillog.0.bz2 | wc -l
> > >        0
> > > $ bzcat /var/log/maillog.0.bz2 | egrep "38436|41640" | wc -l
> > >      121
...
> > And more fun, try also "egrep -J| wc", which is similar to the
> > 2d case above.
> 
> Can you elaborate the fun, please?

In short: will you take "bad choice of words" as an explanation?

In somewhat long form: i had read once, twice, or more times in past
(most likely in comp.unix.*) that "egrep" was exactly not same as
"grep -E", and/or "fgrep" not exactly as "grep -F".  The OP's
finding reminded me of that even if behaviour difference that was
due to an actual bug.


  - Parv

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