barcode(6)

barcode6

Draws a random sequence of barcodes for the products you enjoy

Usage

barcode [--display host:display.screen] [--visual visual] [--window] [--root] [--window-id number] [--delay number] [--clock] [--clock24] [--fps]

Overview

This draws a random sequence of colorful barcodes scrolling across your screen.

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.

--delay number

Per-frame delay, in microseconds. Default: 10000 (0.02 seconds.).

--clock

Instead of drawing a stream of barcodes, draw a barcode-based digital clock.

--clock24

Same as --clock, but display 24-hour time instead of 12-hour time.

--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

Dan Bornstein <[email protected]>

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