this is something i had to deal with before when writing a script on a windows test server... then switching it to unix... (a bad move not recomended)

The problem i faced was that the -d option didnt work on windows. i did it by looking at the numbers of stat... the second field "file mode" does the trick. When i switched to nix i had to change the numbers and that was it

#!/usr/bin/perl
my @allfiles;
$dir = "..\\";
opendir (THISDIR, $dir) or die "Can't read dir";
@temp = grep { not /^[.][.]?\z/ } readdir THISDIR;
foreach $l(@temp){
    (@status[0..12]) = stat($dir.$l);
    if ($status[2] == 16895){            #windows dir will
        $alldir[++$#alldir] = $l;
        print "\nDirectory = $l";
    }else{
        print "\nFile = $l";
    }
}
[download]

i know there is a better solution but this was my make fast one. Note that this does not deal with symbolic links