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From: geoff@Veritas.COM (Geoffrey Leach)
Newsgroups: comp.editors
Subject: Re: Global Empty Line Removal in vi?
Message-ID: <1991Jan24.172344.28877@Veritas.COM>
Date: 24 Jan 91 17:23:44 GMT
References: <chris.664709285@budgie>
Organization: VERITAS Software
Lines: 10

From article <chris.664709285@budgie>, by chris@bilby.cs.uwa.oz.au (chris mcdonald):
> In <1991Jan24.064310.8077@midway.uchicago.edu> zi0h@quads.uchicago.edu (W. Ishii) writes:
> 
>>Hello there!  As a vi novice (maybe a stronger term is called for--vi idiot,
>>probably), I've been stuck for about a week now trying to figure out how to
>>globally remove multiple blank lines from text.
> 
> Filter the whole file (with !<line count>! ) through cat -s

Try ":g/^$/d"