Execute Shell command in Panel SDK Mac

Hi,

I´d like to execute the following task with a Panel:

• render the active sequence

• when finished send the output video file to another application using Apple Script

The Panel SDK Examples are a great start. So the missing part is, how can I send a shell command that executes an AppleScript?

In the ExtendScript Toolkit I found a function that looks promising. But executing this script only pops up an alert window saying "failed". Here´s the code:

var test = UIAutomationSupport.helper.executeConsoleCommand("ls -l");

alert(test);

So does Premiere has an equivalent function like system.callSystem() in After Effects?

Thanks,

Thomas