brightnessctl(1) on Linux
The text fc9e1bbd29b6, as Debian 10 (Buster) shipped it.
read and control device brightness
Flags it lists
-
--class -
--device -
--help -
--list -
--machine-readable -
--min-value -
--pretend -
--quiet -
--restore -
--save -
--version -
-c -
-d -
-h -
-l -
-m -
-n -
-p -
-q -
-r -
-s -
-v