404 Not Found

Enjoy a randomly generated fortune:

$ fortune | cowsay

 ________________________________________
/ Is it weird in here, or is it just me? \
|                                        |
\ -- Steven Wright                       /
 ----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

$output = shell_exec("/usr/games/fortune | /usr/games/cowsay");
echo $output;