Another way is to store all your opt in a hash instead of individual scalars: 
use warnings;
use strict;
use Getopt::Long;
use Data::Dumper;
$Data::Dumper::Sortkeys=1;

my %opt;
GetOptions(\%opt, qw(
    help
    cfg=s
    verbose
    silent
    dir=s
)) or die "Mandatory options not supplied\n";

print Dumper(\%opt);

__END__

script.pl -h -v

$VAR1 = {
          'help' => 1,
          'verbose' => 1
        };

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In reply to Re: How to find what options are used for Getopt::Long by toolic
in thread How to find what options are used for Getopt::Long by doubledecker

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