Path: utzoo!attcan!uunet!lll-winken!ames!purdue!decwrl!shelby!agate!saturn!ucscc.UCSC.EDU!haynes
From: haynes@ucscc.UCSC.EDU (Jim Haynes)
Newsgroups: comp.unix.questions
Subject: grep(s) on 4.x BSD
Keywords: grep
Message-ID: <7091@saturn.ucsc.edu>
Date: 12 May 89 03:49:33 GMT
References: <157@VAX1.CC.UAKRON.EDU>
Sender: usenet@saturn.ucsc.edu
Reply-To: haynes@ucscc.UCSC.EDU (Jim Haynes)
Organization: California State Home for the Weird
Lines: 16

We just discovered on our system, which started life as 3BSD and
has been upgraded over the years to 4.3 (but not tahoe), that there
are a /usr/ucb/grep and a /bin/grep.  The /bin/grep seems to have
powers that the others don't, such as working with the expression
  '\(.*\)\1'
A 4.3 tahoe system seems to have only the /usr/ucb/grep, which does
not work with that expression.

Does anybody remember how we got into this mess and why?

haynes@ucscc.ucsc.edu
haynes@ucscc.bitnet
..ucbvax!ucscc!haynes

"Any clod can have the facts, but having opinions is an Art."
        Charles McCabe, San Francisco Chronicle