Try substituting the following:

• if (-d !$dir) { ... by unless (-d $dir) { ... -- you don't want the directory to be used as a binary value
• while (my $infile = readdir(DIR)) { ... by for my $infile (readdir(DIR)) { ... -- array, not filehandle

Those seem to be mistakes. See if it works for you afterwards.
Hope this helped.
CombatSquirrel.

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Entropy is the tendency of everything going to hell.

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