Go is one of the best languages for building cross-platform command-line applications thanks to its single binary compilation. In this course, you’ll learn to design powerful, user-friendly CLI tools with Cobra (command parsing) and Viper (configuration management).
You’ll implement:
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Nested commands with flags and arguments (
myapp init,myapp serve). -
Config loading from environment variables, JSON/YAML files, and flags.
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Interactive prompts and colorized output for improved UX.
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Shell autocompletion for Bash, Zsh, and Fish.
On the practical side, you’ll build a real CLI app step by step, such as a todo task manager, a log parser, or a GitHub issue tracker. You’ll also package your tool as a single binary for Windows, macOS, and Linux using Go’s cross-compilation features.
Finally, you’ll integrate telemetry, error reporting, and versioning, ensuring your tool is polished and production-ready. By the end, you’ll have the skills to build CLI apps users will actually love to use.
