az login
az iot hub device-identity create -n [IoTHub Name] -d [Device ID]
az iot hub device-identity list --hub-name [IoTHub Name]
az iot hub device-identity show-connection-string -n [IoTHub Name] -d [Device ID]
az iot device c2d-message send -d [Device Id] -n [IoTHub Name] --data [Data_to_Send]
az iot hub device-identity delete -n [IoTHub Name] -d [Device ID]
az iot hub monitor-events -n [IoTHub Name] --login 'HostName=myhub.azuredevices.net;SharedAccessKeyName=iothubowner;SharedAccessKey=12345'
Additional information for Azure IoT CLI can be found here