#!/usr/bin/perl
use strict;
use warnings;
use Data::Dumper;
use File::Find;

my $dir = shift or die "bitte html suchen/ersetzen verzeichnis eingeben\n";
opendir(DIR, $dir) or die "html suchen/ersetzen verzeichnis existiert nicht: $dir";
closedir(DIR);

#works, but with warning:
#Variable "@myfiles" will not stay shared at fileFindTroubleshooting.pl line 34.
my @files = get_files($dir);

foreach (@files) {
	print "file: $_\n"

}

sub get_files {
	my $directory = shift;	
	opendir (DIR, $directory) or die "couldn't open directory: $directory";
	
	my @myfiles;
    my @directories_to_search = ("$directory");
    
    find( sub { 
    		my $name = $File::Find::name;
	    	if ( $name =~ /html$/i && ! ( $name =~ /\.backup\.before/i ) ) {
	    		$name =~ s|\\|/|; # substitute forward slash for back slashes, icky but don't know a better way.
	    		#print "name: $name\n";
	    		push @myfiles, $name;
	    	} 
    	}, @directories_to_search);

   	return @myfiles;
}