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This feature is exclusive to Java Edition. 

Opens singleplayer world to the local network.

Syntax[]

publish [<port>]

Arguments[]

<port>: integer

The port to host on. If not specified, a random port above 1024 is chosen.
Must be a 32-bit integer number. And it must be between 0 and 65535 (inclusive).

Result[]

CommandTriggerJava Edition
anythe arguments are not specified correctly Unparseable
the world is already published to LAN Failed
the specified port could not be bound (e.g. a reserved port, or already in use by another application).
On successOpen the world to the local network.

Output[]

CommandEditionSituationSuccess Count/execute store success .../execute store result ...
anyJava EditionOn failN/A00
On successN/A1the port allocated for this LAN world.

History[]

Java Edition
1.3.112w24aAdded /publish.
1.1317w45a/publish now accepts an optional port argument.
/publish can now be run from command blocks.
18w01a/publish can no longer be run from command blocks.
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