If you want the entire argument string try using @ARGV

#!/usr/bin/perl
use strict;
use warnings;

my (@args) = @ARGV;
print "args = @args\n";
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Call this script with some arguments:br> perl x.pl -a b -c d -g hask

It would produce an output:
args = -a b -c d -g hask

At this point you would have to do the work of parsing through the array and grouping what you want where.
Hope that helps!