Listing 2. Destruction can be fun if you are just testing.

Debian GNU/Linux testing/unstable (none) tty0

(none) login: root
Linux (none) 2.6.14.3-bs3 #7 Fri Dec 16 17:47:00 CET 2005 i686 GNU/Linux

The programs included with the Debian GNU/Linux system are free software;
the exact distribution terms for each program are described in the
individual files in /usr/share/doc/*/copyright.

Debian GNU/Linux comes with ABSOLUTELY NO WARRANTY, to the extent
permitted by applicable law.

(none):~#  rm -rf /
rm: cannot remove `//proc/meminfo': Operation not permitted
rm: cannot remove `//proc/uptime': Operation not permitted
(... Many warnings about read-only filesystems omitted ...)
rm: cannot remove `//proc/loadavg': Operation not permitted
rm: `//proc/self' changed dev/ino: Operation not permitted
(none):~# df -k
-bash: df: command not found
(none):~# ps -ef
-bash: ps: command not found
(none):~# halt
-bash: /sbin/halt: No such file or directory
(none):~#