Windows の Thumbs.db から画像キャッシュのサムネイルを削除する Perl

#! /usr/bin/perl
use strict;
use warnings;
my $path = "C:/FlexApp/xx";
my $filecount = 0;
sub parse_env {
     my $path = $_[0]; #or use my($path) = @_; @_ is similar to arguments in javascript
     my $subpath;
     my $handle;
     if (-d $path) {# whether the current path is a directory
         if (opendir($handle, $path)) {
             while ($subpath = readdir($handle)) {
                 if (! ($subpath =~ m/^\. $/) and ! ($subpath =~ m/^(\. \.) $/)) {
                     my $p = $path."/$subpath";
                     if (-d $p) {
                         parse_env($p);
                     } elsif ($subpath eq "Thumbs.db") {
                         ++$filecount;
                            print "The file path:". $p."------------The file name: $subpath\n";
                         unlink($p) or warn "failed on $subpath:$! ";
                     }
                 }
             }
             closedir($handle);
         }
     }
     return $filecount;
}
my $count = parse_env $path;
my $str = "Total number of deleted files:". $count;
print $str;