Just an afterthought: Getopt::Declare could be used for command-line argument processing.

#!/usr/bin/perl -w
use strict;

use Getopt::Declare;

my $args = new Getopt::Declare <<'EOSPEC' or die;
    [strict]
    FOO <value> 
        first parameter

    TEST <number>       
        second parameter

    EVERYTHING <boolean>        
        third parameter
EOSPEC

for (qw(FOO TEST EVERYTHING)) {
  print "$_ ... ".$args->{$_}."\n"
      if defined($args->{$_});
}
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