Mime-Version:	1.0
To:	jlrubin AT bway DOT net (Josh Rubin), djgpp AT delorie DOT com
From:	Nate Eldredge <nate AT cartsys DOT com>
Subject:	Re: sed hates me
Date:	Mon, 8 Jun 1998 17:08:36 -0700
Message-ID:	<19980609000834.AAA6349@ppp100.cartsys.com>

At 03:21  6/7/1998 GMT, Josh Rubin wrote:
>Sed vewsion 1.18 doesn't seem to like backspaces in
>regular expressions. 
>
>sed --expression='s/\b//g'  file > output 
>leaves backspaces untouched. - try it on a formatted man page.
>
>sed --expression='s/x\b//g' 
>removes the 'x' but leaves the backspace!
>
>Am I doing something wrong, or is this a sed bug, or
>this this specific to the DJGPP port?

sed is not, in general, very open to escape sequences in regexps. I've found
it's necessary to use a literal backspace character. In Unix sh or bash, you
can do:

sed `echo -e 's/\b//g'`

Nate Eldredge
nate AT cartsys DOT com

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