$path = hiec/by/mlor/kkss23/dndd@@mani/css.cpp/0

##</code><code>##

$path =~ (m/\d+$\/);

##</code><code>##

$path =~ (m/\d+$/);

##</code><code>##

use strict;
my $path = 'hiec/by/mlor/kkss23/dndd@@mani/css.cpp/0';
if ($path =~ m/(\d+)$/ and $1 == 0) { 
 # ends in zero
}
else{
 # not zero or no digits
}