rice/bright

#!/bin/bash
# this part is only used for startup scripts mainly
if [ ! -z "$1" ] 
then
	screens="`xrandr | grep ' connected' | awk '{print $1}'`"
	percentage=`echo "scale=2;" "$1/100" | bc -l`
	for s in $screens; do
		xrandr --output "$s" --brightness "0$percentage"
		echo xrandr --output "$s" --brightness "0$percentage"
	done
	exit 0
fi

# Changes brightness through dmenu (because i like my eyes)
current="`xrandr --verbose | grep Brightness | head -1 | awk '{print $2}'`"
level=`seq 1 100 | dmenu -i -p "($current) Brightnesss from 1-100"`
if [ -z "$level" ]; then exit; fi

percentage=`echo "scale=2;" "$level/100" | bc -l`
if [ -z "$percentage" ]; then exit; fi

screens="`xrandr | grep ' connected' | awk '{print $1}'`"
for scr in $screens;do
	xrandr --output "$scr" --brightness $percentage
done