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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ A would-be disciple came to Nasrudin's  \
| hut on the mountain-side. Knowing that  |
| every action of such an enlightened one |
| is significant, the seeker watched the  |
| teacher closely. "Why do you blow on    |
| your hands?" "To warm myself in the     |
| cold." Later, Nasrudin poured bowls of  |
| hot soup for himself and the newcomer,  |
| and blew on his own. "Why are you doing |
| that, Master?" "To cool the soup."      |
| Unable to trust a man who uses the same |
| process to arrive at two different      |
| results -- hot and cold -- the disciple |
\ departed.                               /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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