my @array = (
  '{title}',
  '{Rule}{Severity}',
  '{Rule}{weight}',
  '{Rule}{id}',
  '{Rule}{version}',
  '{Rule}{title}',
  '{Rule}{detailedDescription}{VulnDiscussion}',
  '{Rule}{detailedDescription}{Responsibility}',
  '{Rule}{detailedDescription}{IAControls}',
  '{Rule}{check}{check-content}',
  '{Rule}{fixtext}{content}',

);

##</code><code>##

foreach my $firstKey (sort keys %hashData) {
  foreach my $arrayKey (@array) {
    print $hashData{$firstKey}$arrayKey;
  }

}