mosquitto_sub with timestamp
mosquitto_sub is an MQTT version 3.1 client for subscribing to topics.
It works pretty well except it does not support to display a timestamp of the events.
The following “simple” command subscribes to all topics of the mosquitto MQTT server and executes the date command for each message.
Thanks to Stewart C. Russell, who suggested to use
package, it can be achieved with a shorter expression: