Hmmm sounds like homework?
I would suggest you read up on opendir and take a look at utf8 on cpan.
-edit-
But for the sake of fun; you could experiment with *not tested*
#! /usr/bin/perl
use strict;
use warnings;
use bytes;
opendir DIR, "/path/to/dir" or die "opendir: $!";
my @files = readdir DIR;
open HANDLE, ">filelist" or die "open filelist: $!";
foreach (@files) {
print HANDLE "$_\n";
}
Get it working and then use the use utf8; and compare the results.
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