I usually start scripts that require arguments with 
die "Usage message\n" unless @ARGV;

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Make sure you put that before the call to GetOptions (it modifies @ARGV)

"What should it profit a man, if he should win a flame war, yet lose his cool?"

In reply to Re^3: Combining two scripts with a command line switch? by Joost
in thread Combining two scripts with a command line switch? by Seventh

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