Greetings,

• You should chomp() everything you get from <stdin> to remove trailing <CR><NL>
• "Adding error messages later" is not a good idea when opening files, directories etc, because the operations will then fail silently - and you'll never know that something is wrong, or what. You should therefore always

  open(FOO,"$foo") or die($!)
  [download]

  even at early developmental stages.

Cheers,
alf

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You can't have everything: where would you put it?