

Don’t want to sound unappreciative, but the apps you refer to (and others in these threads) are not actually CLI’s but TUI’s.
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CLI (command line interface) is when all interaction actually happens in the command line, ie. command + arguments. CLI’s are much simpler to implement, have little dependencies (pretty much just argument list, two data streams—stdout and stderr–and exit status) and typically one invocation means one independent task. All this makes CLI’s ideal as building building blocks of (semi-)automated workflows, but many CLI’s are also optimized for direct invocation from interactive shell, eg. by adding features such as output coloring, interactive yes/no steps or command completion (although that part is actually driven by the shell, and is quite independent from the execution of the app.)
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TUI (text user interface, i think) on the other hand, is more like GUI but replicated within the confines of terminal emulator. The interaction heavily depends on terminal features such as moving cursor, resize notifications, etc. Also when TUI is ran, it’s normally used for zero to may tasks: e.g. I could start htop and investigate no process, 1 process or many, before quitting. Unlike CLI’s, TUI’s pretty much make no sense within automation.
Don’t get me wrong: I love TUI’s (htop is one of my favorite and thanks for recommending nmon, i’ll have a look)–and often prefer them to GUI’s (eg. my text editor is nvim, which is a TUI app!), but in my post I was specifically interested in exploring CLI’s. I would actually love a similar post to mine but focusing explicitly on TUI’s as opposed to CLI’s.
Sorry for long post – I hope it can kind of serve as explanation for people who are new to this and stumble upon this thread and aren’t quite familiar with the distinction.

what do you mean? jq is great!