package mqttcli is a program that provides two subcommands (pub and sub) that allow command-line level access to an MQTT broker.

sub subscribes to a topic and prints messages received to standard output. pub publishes the provided message to the provided topic. Both programs accept flags that can be provided as a config file.

• go run ./cmd/sub -broker tcp://test.mosquitto.org:1883 -topic mqttcli/test
• echo hello | go run ./cmd/pub -broker tcp://test.mosquitto.org:1883 -topic mqttcli/test

cat > sub.cfg << EOF
broker tcp://test.mosquitto.org:1883
topic mqttcli/test
EOF
go run ./cmd/sub -config sub.cfg

cat > pub.cfg << EOF
broker tcp://test.mosquitto.org:1883
topic mqttcli/test
EOF
echo hello | go run ./cmd/pub -config pub.cfg