https://github.com/rosbook/effective_robotics_programming_with_ros
mkdir -p ~/rosbook_ws/src
cd ~/rosbook_ws/src
cd ..
catkin_make
source ~/rosbook_ws/devel/setup.bash
gedit ~/.bashrc
roslaunch rosbook_arm_gazebo rosbook_arm_empty_world.launch
roslaunch rosbook_arm_moveit_config moveit_rviz.launch config:=true