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Crop string to x characters

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From:
Gary Hawkins
Date:
February 17, 2002 14:34
Subject:
Crop string to x characters
Message ID:
LOBBIJFNBAGIOILLFAIBAEFDNJAA.ghawk@eskimo.com
How do I truncate a string to a particular number of characters?

This is expensive:

$shortdescription =~
s/(............................................................................
........................................ ).*/$1/;

Gary
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