You want to open the directory (handle) and read all filenames into an array using readdir. This will read all files (including . and .. into the array). From here you can use a foreach loop to iterate throught he array and do what you want:

my $directory = 'c:\windows';

opendir(DIR,$directory);
my @files = readdir(DIR);
closedir(DIR);
foreach(@files){
  print $_,"\n";
}
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I hope this gets you going in the right direction...

Mick