I use this idiom in my scripts: 
exit usage("Please specify ip address") unless $opt_i;
exit usage("Please specify tftp server") unless $opt_s;

[download]
... and so on. usage is written so it returns 1 (typically).

In reply to Re: help with getting my perl script to run via web by nkuitse
in thread help with getting my perl script to run via web by liljunior

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