Java EE 6 projects can be easily created from command line. You only need Maven 3 for that purpose:
See also a "transcription" of the screencast in my post Kickstarting Real World Java EE 6 Projects With Maven 3.
After the initial euphoria you should also take a look at Trouble With Crippled Java EE 6 APIs in Maven Repository And The Solution :-).
3 seats left: HTML 5 for Java Developers, Tuesday, April 28th, 2015 and NEW online workshop: Java EE 7 Bootstrap