Code tags are your (and our) friends.

Your problem is that you don't store the number of matches. The following code will fix your issue.

use warnings;
use strict;
my $cnt = 0;
my $str = "hi hi harshmane hi hi";


$cnt = ($str =~ s/(harsh)/$1/g);
print "'harsh' appears $cnt times.\n";

$cnt = ($str =~ s/(hi)/$1/g);
print "'hi' appears $cnt times.\n";

#OUTPUT
#'harsh' appears 1 times.
#'hi' appears 4 times.

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In reply to Re: how to find substring using regex by zek152
in thread how to find substring using regex by harshmane

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