#!/bin/sh usage () { echo "Usage: ledctl [normal|test|allon|alloff|production]" exit 1 } [ $# -ne 1 ] && usage ledstate=$(echo $1 | tr '[A-Z]' '[a-z]') case $ledstate in normal|test|allon|alloff|production) ubus call leds set "{\"state\" : \"$ledstate\"}" ;; *) usage ;; esac