demon(6)

demon6

Cellular automaton.

Usage

demon [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--count number] [--cycles number] [--delay number] [--ncolors number] [--size number] [--fps]

Overview

A cellular automaton that starts with a random field, and organizes it into stripes and spirals.

Options

--visual visual

Specify which visual to use. Legal values are the name of a visual class, or the id number (decimal or hex) of a specific visual.

--window

Draw on a newly-created window. This is the default.

--root

Draw on the root window.

--window-id number

Draw on the specified window.

--count number

States. 0 - 20. Default: 0.

--cycles number

Timeout. 0 - 800000. Default: 1000.

--delay number

Per-frame delay, in microseconds. Default: 50000 (0.05 seconds.).

--ncolors number

Number of Colors. Default: 64.

--size number

Cell Size. -20 - 20. Default: -7.

--fps

Display the current frame rate and CPU load.

Environment

DISPLAY

to get the default host and display number.

XENVIRONMENT

to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.

XSCREENSAVER_WINDOW

The window ID to use with --root.

Author

David Bagley.

From xscreensaver 6.15-1 in Arch Linux 2026-11-01. Parsed by carta from the page's man source.