barcode — draws a random sequence of barcodes for the products you enjoy


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


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


-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.
Draw on a newly-created window. This is the default.
Draw on the root window.
-delay number
Per-frame delay, in microseconds. Default: 10000 (0.02 seconds.).
Instead of drawing a stream of barcodes, draw a barcode-based digital clock.
Same as -clock, but display 24-hour time instead of 12-hour time.
Display the current frame rate and CPU load.


to get the default host and display number.
to get the name of a resource file that overrides the global resources stored in the RESOURCE_MANAGER property.


Dan Bornstein <>