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Article View: comp.sys.next.misc
Article #803

Re: filtering a text file

#803
From: Mark Neidengard
Date: Thu, 06 Aug 1992 20:54
41 lines
1937 bytes
In article <1992Aug6.102953.8775@darkcube.radig.de> vhs@darkcube.radig.de writes:
>In article <BsFuBt.D8I@news.cso.uiuc.edu> Melman@uiuc.edu (Melvin Wilson)  
>writes:
>> Hello,
>> 
>> Help!
>> 
>> I have a very simple (and for the more experienced, stupid) question.
>> 
>> From the command prompt on a NeXT how could I search a text file and remove  
>> every instance of a particular expression in that text file?  I've tried but  
>I  
>> cannot figure out the apropriate format of the command.
>
>type
>	<inputfile >outputfile sed 's/old/new/g'
>replacing inputfile and outputfile with their respective values.
>The expression "old" will be replaced by "new". If old or new contain
>any / characters, use a different character in the sed expression instead, like
>	sed 's:old:new:g'
>
>--
>Volker Herminghaus-Shirai (vhs@darkcube.radig.de)
>
>Computer industry: Industry in which the number of units sold of any
>given product is inversely proportional to its technical excellence.
>See also: MS-DOS, Windows, IBM-PC, X, QWERTY, 80x86.

The easy way to REMOVE things using sed is to replace them by a null.

This is accomplished by saying:

'cat oldfile | sed s/searchstring//g > outputfile'

This will QUICKLY remove every instance of your searchstring by replacing it
with NOTHING =)

Have fun!

Mark Neidengard
mneideng@cosmos.aca.calpoly.edu
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Message-ID: <1992Aug06.205458.112586@zeus.calpoly.edu>
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References: <BsFuBt.D8I@news.cso.uiuc.edu> <1992Aug6.102953.8775@darkcube.radig.de>

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From: mneideng@thidwick.acs.calpoly.edu (Mark Neidengard)
Newsgroups: comp.sys.next.misc
Subject: Re: filtering a text file
Message-ID: <1992Aug06.205458.112586@zeus.calpoly.edu>
Date: 6 Aug 92 20:54:58 GMT
References: <BsFuBt.D8I@news.cso.uiuc.edu> <1992Aug6.102953.8775@darkcube.radig.de>
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