Run code: Open Terminal: Ctrl+Alt+T
Terminal 1: - init_world Terminal 2: - cd work_dir - python ttb_template.py
Reset: Terminal 2 - Ctrl+Z - reset_ttb
alias init_world='roslaunch turtlebot3_gazebo multi_turtlebot3.launch' alias work_dir='~/ttb_ws/src/turtlebot3_simulations/turtlebot3_gazebo/src/py' alias reset_ttb='rostopic pub /ttb_yellow/cmd_vel geometry_msgs/Twist "linear: x: 0.0 y: 0.0 z: 0.0 angular: x: 0.0 y: 0.0 z: 0.0"'