foreach (@files) {
  print "$_\n";
  my $original = $_;
  s/canción/poesía/;
  rename "$directory\\$original", "$directory\\$_";
}

##</code><code>##

use strict;
use warnings;
use utf8;

use Win32::Unicode;
use Win32::Unicode::Dir;

my $wdir = Win32::Unicode::Dir->new;
$wdir->open('./');

while ( my $file=$wdir->fetch ) {
    next if( $file !~ /^canción/ );
    my $file_new=$file;
    $file_new =~ s/canción/poesía/;

    printW "$file ==> $file_new\n";
    #moveW($file, $file_new) or die $!;
}
$wdir->close;

##</code><code>##

ppm install "http://sourceforge.jp/frs/g_redir.php?m=jaist&f=%2Fassp%2FASSP+V2+multithreading%2Fpackages%2FWin32-Unicode.ppd"