dim

#!/bin/bash
 
# lowers screen brightness, then waits to be killed
# and restores previous brightness on exit.
 
min_brightness=0
fade_time=200
fade_steps=20
 
###############################################################################
 
cb=$(xbacklight -get)
trap 'exit 0' TERM INT
trap 'xbacklight -set $cb' EXIT
xbacklight -time $fade_time -steps $fade_steps -set $min_brightness
notify-send "Locking Screen due to Inactivity"
sleep inf