Running a command line for groovy from XCode after unit testing

I edited my target scheme to run a script action after testing as below Target Scheme -> Test (Debug) -> Post Actions

The script hw.sh had a simple command line call:

open /Applications/Safari.app/

It worked fine for the above script. When I changed it to the following

groovy http://ift.tt/1ukY8Eq -s /Users/sasokan/Downloads/MyProject

Nothing happened. How can I call this groovy application using a script.