vertx / io.vertx.reactivex.ext.shell.command / CommandRegistry / unregisterCommand

# unregisterCommand

`open fun unregisterCommand(commandName: String): CommandRegistry`

Like `io.vertx.reactivex.ext.shell.command.CommandRegistry#unregisterCommand`, without a completion handler.

### Parameters

`commandName` -

Return

`open fun unregisterCommand(commandName: String, completionHandler: Handler<AsyncResult<Void>>): CommandRegistry`

Unregister a command.

### Parameters

`commandName` - the command name

`completionHandler` - notified when the command is unregistered

Return
a reference to this, so the API can be used fluently