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I'm a bit of a noob on ROS2 and I'm starting to learn about the DDS protocol and its implementation on ROS2. So far, I've read that ROS2 already comes with eProsima Fast RTPS, however, I would like to make sure if this is really installed or not. How can I confirm this? Is there a terminal command or something I can do to test it?

Thank you!

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The simplest way to check if you installed ros2 from apt is

apt list --installed ros-eloquent-fastrtps

or you could check the directory /opt/ros/eloquent/include/fastrtps

Shrijit Singh
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