Mosquitto commands:

purge channel

.\mosquitto_pub.exe -t livingroom/ota -r -n

.\mosquitto_pub.exe -t <topic> -r -n

post ON

.\mosquitto_pub.exe -t livingroom/ota -m "ON"

mosquitto server verbose

.\mosquitto.exe -v

mosquitto client/subscriber: get everything posted in this topic and dependent topics

.\mosquitto_sub.exe -t livingroom/#