So that means once you do something in a CLI tool, and copyright it, it's game over for everyone else using said tool? I understand what you're saying but I'm not sure that tracks, technically you could argue that the tool's license also include every combination of parameters used since the authors implemented them

But if a command language is turing complete, or some subset of it, then I guess there is more than one way of doing something and the copyright is a fair game, you can always reimplement it