How to make mosquitto_sub print topic and message when subscribed to #

mqtt mosquitto

Khush Bhatia · Feb 23, 2017 · Viewed 20.6k times · Source

The following command shows all the messages published to topics that match the regex but not the exact topic itself.

mosquitto_sub -h localhost -u user -P pass -t 'devices/#'
{"value":"50"}
{"value":"45"}

For example the above json messages were published to topic devices/1234/transducer/46364/ but I could not figure any way to print the topic as well using mosquitto_sub.

Answer

Use the -v option

mosquitto_sub -h localhost -u user -P pass -v -t 'devices/#'

From the man page:

   -v, --verbose
       Print received messages verbosely. With this argument, messages
       will be printed as "topic payload". When this argument is not
       given, the messages are printed as "payload".

How to make mosquitto_sub print topic and message when subscribed to #

Answer

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