Path: utzoo!utgpu!jarvis.csri.toronto.edu!cs.utexas.edu!usc!apple!sun-barr!newstop!texsun!convex!convexe!tchrist
From: tchrist@convexe.uucp (Tom Christiansen)
Newsgroups: gnu.utils.bug
Subject: 3 grep problems
Message-ID: <3603@convex.UUCP>
Date: 1 Dec 89 22:06:43 GMT
Sender: news@convex.UUCP
Reply-To: tchrist@convex.Com (Tom Christiansen)
Distribution: gnu
Organization: CONVEX Software Development, Richardson, TX
Lines: 27


I'm running GNU grep version 1.3, not 1.4 (our Internet link is
being flaky right now or I'd FTP it.)  I don't know whether
these problems are fixed in 1.4 or not.


1.  The -y alias for -i is not recognized.

2.  "grep -v -c foo < /dev/null" claims that it found one not-match.
    standard greps report 0.

3.  Underbar is considered a word delimiter in gnu grep, but
    not in standard grep.  That means that this:

    grep -c foo  << EOF
    this is foo
    foo_bar
    but is foobar the same?
    EOF

    finds 2 matches with gnu grep and 1 with standard greps.

--tom

    Tom Christiansen                       {uunet,uiucdcs,sun}!convex!tchrist 
    Convex Computer Corporation                            tchrist@convex.COM
		 "EMACS belongs in <sys/errno.h>: Editor too big!"