Already reneeb++ and ptum++ has given solutions to solve your problem.

In addition to that, if you are getting the list of files from directory, you can use '$' anchor at the end in the matching regex ($exten) to avoid files matching '.xml.bak', '.doc.bak' etc. I think this ll help you.

use strict;
use warnings;
my $exten = '(\.txt|\.csv)$';
my @files = ('one.txt.bak', 'two.html', 'three.csv', 'four.log', 'five
+.txt');
foreach (@files) {
  if (/$exten/) {
    print $_, "\n";
  }
}

prints:
three.csv
five.txt

[download]

This won't match 'one.txt.bak'.

updated: added code

Prasad

In reply to Re: how to get the String as regularexpression by prasadbabu
in thread how to get the String as regularexpression by arunmep

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