I'll assume by your use of the word "match" that you're looking for regular expression help. A dot (.) will match any character and the curly brace quantifier will allow you to match any number of the preceding thing. However, dot does not match the newline sequence, so perhaps you need a /s modifier on your RE. Put these things together and you get something like this: 
$string =~ /.{30}/s;

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See perlre and perlretut for more information.

If you didn't really mean to use regular expressions, see the length function.

duff

In reply to Re: matching a defined lenght by duff
in thread matching a defined lenght by harryC

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