# !/usr/bash CURRENT_BRIGHTNESS=$( brightnessctl -m | awk -F, '{print $4}' | tr -d % ) OLD_BRIGHTNESS=$( cat /etc/xdg/waybar/scripts/old-brightness.txt ) if [ "$CURRENT_BRIGHTNESS" -ne 1 ] ; then echo "$CURRENT_BRIGHTNESS" > /etc/xdg/waybar/scripts/old-brightness.txt; brightnessctl set 1%; else brightnessctl set "$OLD_BRIGHTNESS"%; fi