dwm-bar/bar-functions/dwm_backlight.sh

#!/bin/sh

# A dwm_bar module to display the current backlight brighness with xbacklight
# Joe Standring <git@joestandring.com>
# GNU GPLv3

# Dependencies: xbacklight

dwm_backlight () {
    printf "☀ %.0f\n" "$(xbacklight)"
}

dwm_backlight