Alas, on the frontpage (in red) you can read :

Hi, the shootout is an unfinished project. I've decided to discontinue updates to it for now while I work on some other things. Thanks for everyone's help.

Which is really a sad thing as their perl code is crippled, with unnecessary code :
(lines number is part of their scoring system)

• useless variables initialization (my %hash=())
• useless buffering

  while (read(STDIN, $_, 4095)) {
      $_ .= <STDIN>;
      ...
      }
  [download]

  instead of

  while(<STDIN>) {
       ...
       }
  [download]

• some examples seem really partial to me :
  echo `wc` is allowed for bash, whereas the Perl solution don't use the one line solution (print `wc`;)
• ad nauseaum...

"Only Bad Coders Code Badly In Perl" (OBC2BIP)