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Enjoy a randomly generated fortune:

$ fortune | cowsay

 _________________________________________
/ Oxygen is a very toxic gas and an       \
| extreme fire hazard. It is fatal in     |
| concentrations of as little as 0.000001 |
| p.p.m. Humans exposed to the oxygen     |
| concentrations die within a few         |
| minutes. Symptoms resemble very much    |
| those of cyanide poisoning (blue face,  |
| etc.). In higher concentrations, e.g.   |
| 20%, the toxic effect is somewhat       |
| delayed and it takes about 2.5 billion  |
| inhalations before death takes place.   |
| The reason for the delay is the         |
| difference in the mechanism of the      |
| toxic effect of oxygen in 20%           |
| concentration. It apparently            |
| contributes to a complex process called |
| aging, of which very little is known,   |
| except that it is always fatal.         |
|                                         |
| However, the main disadvantage of the   |
| 20% oxygen concentration is in the fact |
| it is habit forming. The first          |
| inhalation (occurring at birth) is      |
| sufficient to make oxygen addiction     |
| permanent. After that, any considerable |
| decrease in the daily oxygen doses      |
| results in death with symptoms          |
| resembling those of cyanide poisoning.  |
|                                         |
| Oxygen is an extreme fire hazard. All   |
| of the fires that were reported in the  |
| continental U.S. for the period of the  |
| past 25 years were found to be due to   |
| the presence of this gas in the         |
| atmosphere surrounding the buildings in |
| question.                               |
|                                         |
| Oxygen is especially dangerous because  |
| it is odorless, colorless and           |
| tasteless, so that its presence can not |
| be readily detected until it is too     |
| late.                                   |
|                                         |
| -- Chemical & Engineering News February |
\ 6, 1956                                 /
 -----------------------------------------
        \   ^__^
         \  (oo)\_______
            (__)\       )\/\
                ||----w |
                ||     ||

Here is the PHP code:

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