If you're doing this in the context to your earlier "How to return Hashref from one script to another script?", perhaps you should look at serialization. For example:

#!/usr/bin/perl

# parent

use Data::Dumper;
use strict;
use warnings;

my $stored=`perl child.pl`;
my $data;
eval $stored;
warn Data::Dumper->Dump([\$data],[qw(*data)]);
[download]

#!/usr/bin/perl

# child

use Data::Dumper;
use strict;
use warnings;

my $data={aref=>[qw(a b c d)],href=>{}};

print Data::Dumper->Dump([\$data],[qw(*data)]);
[download]