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I learned the basics of jq and quite liked it, but since I discovered Nushell it has replaced nearly all my data processing I do at the cli. It really is good technology.

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site looks like a bashcompletion thing, how does it replace jq?

Not sure where you're getting the idea that it's a Bash completion extension from. It's a new shell (see name) that natively supports complex nested data structures, numbers, numbers with units, and so on. Compare with the classic POSIX shell model where everything is line-based (defined loosely), numerical operations rely on hacks, and splitting command output lines relies on hardcoded column indices.

I have nushell installed and use it sometimes. Does it have built-in JSON parsing like jq?

Edit: Well, I just found out about `cat some.json | from json` in nushell. Pretty cool! The nested tables are nice.

No need for that even. It's just:

open some.json

It's definitely not bash completion. But on the jq note you can read JSON, and various other formats, directly into nushell's data model (a table) and just start querying it.

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