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From: weimer@garden.ssd.kodak.com (Gary Weimer (253-7796))
Newsgroups: comp.unix.shell
Subject: Re: deleting some empty lines with sed
Message-ID: <1991Apr29.150244.4378@ssd.kodak.com>
Date: 29 Apr 91 15:02:44 GMT
References: <1991Apr27.143519.26256@daimi.aau.dk> <1991Apr27.211212.18855@convex.com>
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Reply-To: weimer@ssd.kodak.com
Organization: Eastman Kodak Co.; Rochester, NY
Lines: 28


In article <1991Apr27.211212.18855@convex.com>, Tom Christiansen
<tchrist@convex.COM> writes:
|> From the keyboard of datpete@daimi.aau.dk (Peter Andersen):
|> :I have some source-files that I produce documentation from.
|> :
|> :I use sed to make a few changes to the text. I have figured
|> :most of it out, but I have one problem remaining:
|> :If two or more blank lines appear, I want to remove all but
|> :one of these.
|> :
|> :I have tried the following sed script
|> :
|> :    s^ *$//p
|> :1,$ N
|> :    s/\(\n\n\)\n*/\1/gp
|> :
|> :but it didn't work.
|> 
|> You need to set up a look with labels and branches.  I see that as I type
|> this another poster has given you a sed solution, so I won't post my
|> crufty version of the same.

[three perl scripts deleted]

Wouldn't 'cat -s' be easier? I know, it's not near as exciting, but...

weimer@ssd.kodak.com ( Gary Weimer )