#!/bin/sh

case $1 in
  bat)
    sudo xbacklight -set 10
    ;;
  ac)
    sudo xbacklight -set 100
    ;;
  inc)
    sudo xbacklight -inc 10
    ;;
  dec)
    sudo xbacklight -dec 10
    ;;
  *)
    echo "Unrecognized configuration '$1'." >&2
    exit 1
esac