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Being away from the computer for two weeks will make you forget 80% of the CLI commands from the author's list.

As someone who uses both GUI and CLI, and has taken month-long travels where I don't use a computer at all, I don't think this is true, at least for me. CLI is like a language; once you've really learned, it takes a long time to forget.

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Yeah, like a language. However if I ommit a commmmma or mispel or abbreviate smth you'll still be able to understand me. A computer on the other hand...

Thankfully while computers are indeed picky about typos, they also gladly guess, complete and validate what you're trying to tell them if you ask politely (a.k.a. banging repeatedly on the tab key).

If someone was nice enough to provide that autocompletion for your favorite commands, because Unix commands don't have any kind of introspection.

Your shell probably does though, at least for files and commands. Some like ZSH even have completions for common commands readily available, accept external completion plugins and let you write your own as a last resort.

Very easy to click the wrong thing in a GUI, It can be rather punishing. Keep in mind the buttons are like preconfigured CLI commands, so things can be more catastrophic.

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