mqttui-publish(1) General Commands Manual mqttui-publish(1)

mqttui-publish - Publish a value quickly

mqttui publish [-r|--retain] [-v|--verbose] [--qos] [-b|--broker] [-u|--username] [--password] [-i|--client-id] [--ca-cert] [--client-cert] [--client-private-key] [--insecure] [-h|--help] <TOPIC> [PAYLOAD]

Publish a value quickly

Publish the MQTT message retained
May also be specified with the MQTTUI_RETAIN environment variable.
Show full MQTT communication
Maximum Quality of Service (`QoS`) for subscriptions and publishing.

The lower Quality of Service level for publisher and subscriber is delivered from broker to subscriber. So subscribing with 0 will never receive a 1 or 2. Publishing with 2 will be received as 1 when subscribed with 1.

- 0: at most once (fire and forget)

- 1: at least once (acknowledged delivery with potential duplicates)

- 2: exactly once (assured delivery without duplicates)

May also be specified with the MQTTUI_QOS environment variable.
Print help (see a summary with '-h')
<TOPIC>
Topic to publish to
[PAYLOAD]
Payload to be published.

Reads from stdin when not specified. This allows file content to be sent via pipes like this (bash):

`mqttui publish some/topic </etc/hostname`

`cowsay "I was here" | mqttui publish some/topic`

URL which represents how to connect to the MQTT broker.

Examples: `mqtt://localhost` `mqtt://localhost:1883` `mqtts://localhost` `mqtts://localhost:8883` `ws://localhost/path` `ws://localhost:9001/path` `wss://localhost/path` `wss://localhost:9001/path`

May also be specified with the MQTTUI_BROKER environment variable.
Username to access the mqtt broker.

Anonymous access when not supplied.

May also be specified with the MQTTUI_USERNAME environment variable.
Password to access the mqtt broker.

Consider using a connection with TLS to the broker. Otherwise the password will be transported in plaintext.

Passing the password via command line is insecure as the password can be read from the history! You should pass it via environment variable.

May also be specified with the MQTTUI_PASSWORD environment variable.
Specify the client id to connect with
May also be specified with the MQTTUI_CLIENTID environment variable.
Path to a trusted CA certificate PEM file for verifying the broker.

The CA certificate has to be a X.509 v3 certificate since rustls does not support the less secure v1 certificates. See: https://github.com/rustls/rustls/issues/2364

May also be specified with the MQTTUI_CA_CERTIFICATE environment variable.
Path to the TLS client certificate file.

Used together with --client-private-key to enable TLS client authentication. The file has to be a DER-encoded X.509 certificate serialized to PEM.

May also be specified with the MQTTUI_CLIENT_CERTIFICATE environment variable.
Path to the TLS client private key file.

Used together with --client-cert to enable TLS client authentication. The file has to be a DER-encoded ASN.1 file in PKCS#8 form serialized to PEM.

May also be specified with the MQTTUI_CLIENT_PRIVATE_KEY environment variable.
Allow insecure TLS connections
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