Not being a real Socket Expert (r), I can only suggest using Pod::Usage for the usage part.

See

perldoc perlpod
perldoc Pod::Usage
perldoc Getopt::Long

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-- 
Joost       downtime n. The period during which a system
            is error-free and immune from user input.

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In reply to Re: Suggestions & Improvements by Joost
in thread Suggestions & Improvements on a portscanner using IO::Socket by czarfred

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