#!/bin/sh # current brightness curr_brightness=$(cat /sys/class/backlight/*/brightness) # max_brightness max_brightness=$(cat /sys/class/backlight/*/max_brightness) # brightness percentage brightness_per=$((100 * curr_brightness / max_brightness)) case $BLOCK_BUTTON in 1) ;; 3) notify-send "💡 Brightness module" "\- Shows current brightness level ☀️." ;; 6) setsid -f "$TERMINAL" -e "$EDITOR" "$0" ;; esac echo "💡 ${brightness_per}%"