The option and its value are passed as arguments to the function, i.e. you can access them (as usual) via @_, or $_[0] (option name) and $_[1] (value). 

...
sub COMPTO {
    my ($optname, $value) = @_;
    print "\nGenerate Output for option -$optname : value=$value\n";
}

__END__
$ ./888928.pl -c foo

Generate Output for option -c : value=foo

[download]

(update: changed to named variables, for readability)

In reply to Re: Processing arguments with Getopt::Long by Eliya
in thread Processing arguments with Getopt::Long by MKJ747

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