bright() {
    if [[ $# == 0 ]]
    then
	bright 976
    else
	# echo $1 | sudo tee /sys/devices/pci0000:00/0000:00:02.0/drm/card0/card0-LVDS-1/intel_backlight/brightness > /dev/null
	sudo /usr/bin/set-brightness $1
    fi
}
dark() {
    bright 1
}
alias d=dark
alias b=bright
i=0; while ((i<20)); do alias $i="bright $((50*i))"; ((i+=1)); done