mosquitto_pub
A simple MQTT version 3.1.1 client that will publish a single message on a topic and exit. More information: https://mosquitto.org/man/mosquitto_pub-1.html.
- Publish a temperature value of 32 on the topic
sensors/temperature
to 192.168.1.1 (defaults tolocalhost
) with Quality of Service (QoS
) set to 1:mosquitto_pub -h {{192.168.1.1}} -t {{sensors/temperature}} -m {{32}} -q {{1}}
- Publish timestamp and temperature data on the topic
sensors/temperature
to a remote host on a non-standard port:mosquitto_pub -h {{192.168.1.1}} -p {{1885}} -t {{sensors/temperature}} -m "{{1266193804 32}}"
- Publish light switch status and retain the message on the topic
switches/kitchen_lights/status
to a remote host because there may be a long period of time between light switch events:mosquitto_pub -r -h "{{iot.eclipse.org}}" -t {{switches/kitchen_lights/status}} -m "{{on}}"
- Send the contents of a file (
data.txt
) as a message and publish it tosensors/temperature
topic:mosquitto_pub -t {{sensors/temperature}} -f {{data.txt}}
- Send the contents of a file (
data.txt
), by reading from stdin and send the entire input as a message and publish it tosensors/temperature
topic:mosquitto_pub -t {{sensors/temperature}} -s < {{data.txt}}
- Read newline delimited data from stdin as a message and publish it to
sensors/temperature
topic:{{echo data.txt}} | mosquitto_pub -t {{sensors/temperature}} -l
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