Removing duplicates within text files?

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Article #1128

#1128

From: Paul Womar
Date: Sat, 09 May 1998 00:00

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I have found that when I get the list of New group from the news server
that many appear for several sessions and so are added to my newsgroups
list many times over thus making it quite a bit longer than it should
be, is there any program that will easily strip out the duplicates, it's
a normal text file, alphabetically sorted with one entry per, any ideas?

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From: {$PW$}@pwomar.demon.co.uk (Paul Womar)
Subject: Removing duplicates within text files?
Date: 1998/05/09
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