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# launch()

Launches the task represented by the receiver.

```
func launch()
```

## Discussion

Raises an `NSInvalidArgumentException` if the launch path has not been set or is invalid or if it fails to create a process.

## See Also

[`-  waitUntilExit`](/documentation/Foundation/Process/waitUntilExit())

Blocks the process until the receiver is finished.

[`-  terminate`](/documentation/Foundation/Process/terminate())

Sends a terminate signal to the receiver and all of its subtasks.


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