How to build useful, empathic and robust CLI tools

I love well-crafted CLI tooling. Multiple colors, space formatting, creative spinners, some emojis... I'm all in for these things. And while I enjoy these tiny details, there is so much more to consider when building a CLI interface.

• When should you use stdout or stderr?
• Which standard CLI parameters should you use?
• How do you write an excellent help dialog?

The Command Line Interface Guidelines answer the above and many other questions. They are a beautiful guide on commonly used CLI best practices that's worth bookmarking.

So, if you're building a CLI tool, check the included recommendations! I promise they will make your tool more useable and more delightful to use!