xfpm-power-backlight-helper(8) on Linux
The text 0d299a6ebf37, as Debian 13 (Trixie), Debian 12 (Bookworm), Debian 11 (Bullseye) shipped it. The page shows this text now.
control the brightness from the command line
Flags it lists
-
--get-brightness -
--get-max-brightness -
--help -
--set-brightness -
-h