#!/bin/sh
gpu1=/sys/class/backlight/amdgpu_bl1/brightness
gpu0=/sys/class/backlight/amdgpu_bl0/brightness
[ -f $gpu0 ] && file=$gpu0 || file=$gpu1 
case $1 in 
    +) br="$(cat $file)"
	br=$(($br + 10))
	printf "$br" > $file
	wayherb "Up Bright 10" &
	;;

    -)
	br="$(cat $file)"
	br=$(($br - 10))
	printf "$br" > $file
	wayherb "Down Bright 10" &
	;;

    -b)
	wayherb "Brightness is set to : $(cat $file)" &
	;;
esac