11.4. Command Reply
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## 11.4. Command Reply

If delivered to UDP port 5858, each command may receive a reply, formulated as follows:

`rpy` `+`|`-`

`rpy`

  The full command string (including arguments) originally received

`+`

  ACK response, indicates success of the command.

`-`

  NAK response, indicates failure of the command.

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11.3. Command Delivery | Home | 11.5. Specifying Color