Do you mean something like this? 
use strict;

my $string = 'ri\d+';

while (my $line = <>) {
    if ($line =~ m{ ( ( \Q$string\E ){3} ) }xms) {
        print $line;
        printf qq{\tMatched "$2" x 3: "$1"\n};
    }
}

[download]

Why don't you post a little more of your code "calling some files"?

In reply to Re^5: can any reply out with a better code than this?? by fenLisesi
in thread can any reply out with a better code than this?? by asdfghjkl

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