In this tutorial, we’ll dive into one of the most essential parts of working with ROS 2: the command-line interface (CLI). Before writing any code, it’s important to understand the basic tools that ROS 2 provides for exploring, debugging, and interacting with nodes, topics, and services.

In this post, we’ll introduce ROS. We’ll focus specifically on ROS 2, which is the current and actively developed version of the framework. Whether you're new to robotics or looking to understand the tools powering today’s most advanced robots, this is the place to start.