As others have already provided you with an answer, I'll provide you with an alternate solution :)

use File::Find::Rule;

my @files = find(
  file =>
  name => [ '*.txt', '*.log' ],
  in   => $your_path_here
);
[download]

That should find all *.{txt,log} files in the directories in and below $your_path_here and store them as filenames in @files. Ain't File::Find::Rule great folks?
HTH

_________
broquaint