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bb - The aalib demo


bb [options]


The bb, command show an high quality audio-visual demonstration for your text terminal


A summary of options are included below. For a complete description type bb -help.

Show summary of options.
play demo in infinite loop
select driver available drivers:linux slang X11 stdout stderr
select keyboard driver available drivers:slang X11 stdin
select mouse driver available drivers:X11 gpm dos
set width
set height
set minimal width
set minimal height
set maximal width
set maximal height
set recomended width
set recomended height
enable usage of dim (half bright) attribute
enable usage of bold (double bright) attribute
enable usage of reverse attribute
enable usage of normal attribute
enable usage of boldfont attrubute
disable (i.e -nobold)
use all 256 characters
use eight bit ascii
select font(This option have effect just on hardwares where aalib is unable to determine current font available fonts:vga8 vga9 mda14 vga14 X8x13 X8x16 X8x13bold vgagl8 line
enable inverse rendering
disable inverse rendering
set bright (0-255)
set contrast (0-255)
set gamma correction value(0-1)
disable dithering
floyd steinberg dithering
error distribution dithering
set random dithering value(0-inf)
multiply factor for dim color (5.3)
multiply factor for dim color (2.7)


See the files in /usr/doc/aalib*


This manual page was written by Michael Bramer <>, for the Debian GNU/Linux system (but may be used by others).