Learn how to create powerful command-line interfaces in Go using the Cobra library. Explore essential features like commands, subcommands, flags, help messages, and documentation generation. Follow along with practical examples to build a CLI application with echo and time commands, incorporating both global and local flags. Gain insights into implementing required flags and structuring your Go projects effectively with Cobra. By the end of this tutorial, you'll have the skills to develop robust CLI tools for various applications, including those used in popular projects like Hugo and Kubernetes.