I think your problem lies here:

for my $a (</home/www/*/logs/weekly>) {
substr($a,-7)=" "; # <<< here
[download]

You are trying to get rid of the last part of the path, I think your log files are stored in /home/www/*/logs/... But you are introducing an extra space by your substr command, it should be either

substr($a,-7)= ""; # empty string!

# or let the os handle the path
$a .= '/..';
[download]

Another thing, could you make sure next time that your code does not contain so many newlines, that makes it horribly hard to read, imho. Thanks.

-- Hofmator