#!/usr/bin/perl
 
use warnings;
use strict;

my $srcdir = "C:\\ROOT_DIR\\test1\\";
my $dest = "C:\\ROOT_DIR\\test2\\";
my (@files);
for (;;) { 
    opendir(DIR, $srcdir) or die "Can't open $srcdir: $!";
    @files = grep {!/^\.+$/} readdir(DIR);
    close(DIR);
 
    if (!@files) {
        print "done.\n\n";
        last;
    }
 
    my $file = $files[0];

 open(my $src_fh, "<:raw:perlio:encoding(UTF-8)", "$srcdir$file")
   or die("Can't open \"$srcdir$file\": $!\n");

 open(my $dst_fh, ">:raw:perlio:encoding(UTF-16)", "$dest$file")
  or die("Can't open \"$dest$file\": $!\n");
  
	print $dst_fh $_ while <$src_fh>;
	unlink($src_fh);
    sleep 1;

}