Publish a temperature value of 32 on the topic sensors/temperature to 192.168.1.1 (defaults to localhost) with Quality of Service (QoS) set to 1
$ mosquitto_pub -h [192.168.1.1] -t [sensors/temperature] -m  -q 
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  -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]"
$ 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 to sensors/temperature topic
$ mosquitto_pub -t [sensors/temperature] -s < [data.txt]
$ [echo data.txt] | mosquitto_pub -t [sensors/temperature] -l