The problem of your approach is that the variables are not set to the default values. If you want to keep the values close to the variables, but you're lazy to repeat the variable names, you can try something like 
#!/usr/bin/perl
use warnings;
use strict;
use feature qw{ say };

use Getopt::Long;

GetOptions(
           'x=s' => \(my $x = 'X'),
           'y=s' => \(my $y = 'Y'),
);

say "$x|$y";

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Example session: 

$ 1.pl
X|Y
$ 1.pl -x abc
abc|Y
$ 1.pl -y def
X|def
$ 1.pl -x abc -y ghi
abc|ghi

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($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord
}map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,

[download]

In reply to Re: default option by choroba
in thread default option by etricaen

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