What is /opt/ros/groovy/setup.sh for in the ~/.bashrc
I'm now transferring from Fuerte to Groovy. I found that after setting up the workspace, I don't need the line "source /opt/ros/groovy/setup.bash" in ~/.bashrc . It seems that only "source $HOME/code/ros_groovy/devel/setup.bash" is needed in ~/.bashrc. I can still create and make package, and run a node successfully without "source /opt/ros/groovy/setup.bash".
What will happen if I omit this line in the .bashrc?