Hi,
I've read that $ source devel/setup.bash is the same as $ .devel/setup.bash and that it reads and executes setup.bash script in **the current shell**. Opposite to this $ ./devel/setup.bash what would run the same script but **launching new shell**.
So we want to run $ source command everytime we open new terminal.
Following questions are:
1. Its not clear to me what actually am I doing with the source command. Where can I find this bash file that contains these enviroment variables, so I can track what's going on?
2. Can I permanently add required enviromental variables so I don't have to do it manually every time I open a terminal? What are pros and cons of doing such.
3. I followed tutorial. Entered this:
$ source devel/setup.bash
$ echo $ROS_PACKAGE_PATH
Which gave me:
/home/username/Workspace/ros-workspace/tutorial_ws/src:/opt/ros/indigo/share:/opt/ros/indigo/stacks
Then I entered this:
$ source /opt/ros/indigo/setup.bash
$ echo $ROS_PACKAGE_PATH
Which gave me:
/opt/ros/indigo/share:/opt/ros/indigo/stacks
Why such sequence erased my ~/home... path from bash??
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