---
name: "fan"
section: "1"
platform: "linux"
package: "toshutils"
version: "2.0.1+debian-24"
release: "Debian 6.0 (Squeeze)"
platforms: ["linux"]
url: "https://new.carta.tech/fan"
---

# fan(1)

turn the fan on/off on a Toshiba Pentium(tm) laptop

## NAME

fan - turn the fan on/off on a Toshiba Pentium(tm) laptop

## SYNOPSIS

**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)](/syslogd/8.md). 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!

## AUTHOR

This program was written by Jonathan Buzzard (jonathan@buzzard.org.uk) and may be freely distributed under the terms of the GNU General Public License. There is ABSOLUTELY NO WARRANTY for this program.

## SEE ALSO

[**svpw**(1)](/svpw/1.md), [**hotkey**(1x)](/hotkey/1x.md), [**tpasswd**(1)](/tpasswd/1.md), [**alarm**(1)](/alarm/1.md), [**wmtuxtime**(1x)](/wmtuxtime/1x.md)