You could use constants via Constant::Generate: 
#!/usr/bin/perl -l

use strict;
use warnings;

use Constant::Generate [qw(FOO)],
    -stringy_vars => 1,
    -start_at  => 12;

if (FOO == 12 and FOO eq FOO) {
    print "FOO is a dualvar";
}

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In reply to Re: User variables with two values? by Khen1950fx
in thread User variables with two values? by Anonymous Monk

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