[op25-dev] OP-25 install successful but have question on last step (source command)

Hi All, I finally found a computer that could be used for a clean install, a Lenovo W500 notebook. Installed Ubuntu 13.10, updated all software, and then did the git clone. Needed GIT so that went fine then ran pybombs. It took over 3 hours and everything went great - no errors. OP25 was the last programs. I then ran the env and got the following file: /home/joe/target/setup_env.sh I ran the source /home/joe/target/setup_env.sh in the terminal (in the pybombs directory like the last few commands). Took a second and then the prompt reappeared. Is this what I should have done or do I have to run the source command somewhere else. So close!!!! thanks, Joe