1 2 3 4 5 6 7 8
#!/bin/sh LIST="$(brightnessctl -l)" SCREEN="$(echo "$LIST" | grep "class 'backlight'" | cut -d"'" -f2)" KEYBOARD="$(echo "$LIST" | grep 'kbd_backlight' | cut -d"'" -f2)" brightnessctl -sd "${SCREEN}" brightnessctl -sd "${KEYBOARD}"