---
name: "pmsd"
section: "8"
platform: "linux"
package: "asr-manpages"
version: "1.2-3"
release: "Debian 2.2 (Potato)"
platforms: ["linux"]
url: "https://new.carta.tech/pmsd"
---

# pmsd(8)

Periodically Manic System Daemon. Manages the bizzare and sometimes unexplainable behavior exhibited by computers.

## NAME

pmsd - Periodically Manic System Daemon. Manages the bizzare and sometimes unexplainable behavior exhibited by computers.

## SYNOPSIS

**pmsd \[-bcfmp\]**

## DESCRIPTION

**pmsd** is a rogue daemon that is spawned on a semi-regular schedule by [init(8)](/init/8.md). Most of the unusual and quirky behavior associated with misbehaving computers can be attributed to pmsd.

pmsd has a number of command-line options, invoked at run-time by [init(8)](/init/8.md). The [ps(1)](/ps/1.md) command will occasionally display the current options, but only if pmsd feels like revealing them. This is usually not the case. pmsd can be manually invoked by the [pms(8)](/pms/8.md) command. Make sure there is not a pmsd process already running when you use [pms(8)](/pms/8.md); you don't want to be on a system with multiple instances of pmsd running.

With no flags,  **pmsd** runs with the default -m option, and any others it feels like using.

## OPTIONS

- **-b**

  Bloat. Files randomly grow in size, filling up filesystems and causing quotas to be exceeded.

- **-c**

  Craving. System becomes hungry, eating magnetic tapes, CD-ROM discs, floppies, and anything else a hapless user loads into a removable media drive.

- **-f**

  Fatigue. System will pause for a random period of time. It is important to leave the system alone during this time. Attempts to coax the machine into normal operation could cause the spontaneous activation of all command-line switches. This is to be avoided.

- **-m**

  Mood swings. Process priorities and nice values are altered randomly. Swapping usually occurs with no warning, even when memory is available. This is the default behavior.

- **-p**

  Peeved. One or more users are selected as targets of the system's anger. Files are deleted, e-mail copied to /etc/motd, and any Usenet articles posted by the targets are crossposted to misc.test and alt.flame.

## NOTES

When pmsd is invoked by using the [pms(8)](/pms/8.md) command, pmsd ignores any command-line switches and does what it damned well pleases.

## SEE ALSO

[pms(8)](/pms/8.md)

## BUGS

There are no bugs; how could you ask that?

## HISTORY

Written by Eric L. Pederson \<eric@bofh.org.uk\>.