Regardless of what the app does and whether the thing that does is particularly useful, powerful or important for what you need to do (or even well implemented), what is a command-line interface that you had a particularly good experience both learning and working with?
In other words, I’m thinking about command line interface design patterns that tend to correlate with good user experience.
“Good user experience” being vague, what I mean is, including (but not limited to)
- discoverability–learning what features are available),
- usability–those features actually being useful,
- and expressiveness–being able to do more with less words without losing clarity,
but if there’s a CLI that has none of those but you still like it, I’d be happy to hear about it.
Edit: Trying to stress more that this post is not about the functionality behind the tool. Looks like most of first responders missed the nuance: whether app x is better than app y because it does x1 ad x2 differently or better does not matter; I’m purely interested in how the command line interface is designed (short/long flags, sub-commands, verbs, nouns, output behaviors)…


Not what you asked, but anything that uses a single hyphen for longopts can just fuck off. I’m talking to you Terraform.
You think that’s bad. You should try Ghostty and it’s +foo options.
I blame Sun/Java for popularizing this. I give find a pass due to its age.
Did not want to respond but this is hilarious.
To be fair, really old CLI’s, like from the time when X.org was the new stuff, this style used to be more common. That was before “GNU style” (using single dash for single-letter bundle-able options and double dash for long options) became prevalent.
But yeah, if you see
-foothen you know the program is old enough that regular colonoscopy is recommended, and the original author is probably retired or “passed away at the ripe age of …”.I hate that too.
7zdoes that and its horrible.