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ROS misc
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| How to install packages from github | |
| git clone -b <branch> <address> | |
| e.g. git clone -b hydro-devel https://github.com/ros/common_msgs.git | |
| What python version I ahve installed? | |
| pkg-config --modversion opencv | |
| How to view a camera topic on ROS? | |
| rosrun image_view image_view image:=/usb_cam/image_rect |
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