open my $fh, "</usr/share/dict/words" or die;
my %h;
$h{$_}++ while <$fh>;

##</code><code>##

  5.8.9   1,245
  5.18.0  1,143
  5.20.0  1,113
  5.22.0  1,163
  5.24.0  1,089