If you really want to use system commands and not straight perl, try: 
system "touch $num.bat";

[download]
Has the advantage of not doing anything to the file (except changing it's timestamp) if it already exists.

In reply to Re: One for the Wisest Monks by Matts
in thread Closing a system process after file creation (was: One for the Wisest Monks) by Anonymous Monk

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