From Linux Man Pages
fan - turn the fan on/off on a Toshiba Pentium(tm) laptop
fan [ -fnatds ]
DESCRIPTION
fan prints the current status of the internal fan on any Toshiba laptop or notebook computer with a Pentium or
better processor, optionally turning it on or off in the process. Changes to the status of the fan are logged via
syslogd(8). For laptops without a fan, a suitable error message is provided.
The information necessary to write this program was derived by examining a number of MS-DOS programs provided by
Toshiba.
OPTIONS
-f, --off
Turn the fan off if not already off.
-n, --on
Turn the fan on if not already on.
-a, --auto
Turn the fan on if connected to AC power, or off otherwise.
-t, --toggle
Turn the fan on if off and vice versa.
-d, --daemon
Go into daemon mode turning the fan on every second if connected to an AC power supply.
-s, --smart
Go into daemon mode turning the fan on every second if connected to an AC power supply, and turning it off
if on battery power
BUGS
This program has no known bugs!
RELATED
svpw(1), hotkey(1x), tpasswd(1), alarm(1), wmtuxtime(1x)
CATEGORY