4 rostopic pub -1 cmd_vel geometry_msgs/Twist '[0.3, 0, 0]' '[0, 0, 0]' > /dev/null &
9 rostopic echo /odom/twist/twist/linear/x > /tmp/velocity.txt &
17 rostopic pub -1 cmd_vel geometry_msgs/Twist '[0, 0, 0]' '[0, 0, 0]' > /dev/null &
20 $(rospack find wild_thumper)/scripts/get_velocity.py /tmp/velocity.txt