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Comment by krelas | Hacker News Reader

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krelas

Here’s one for HN readers, you can now find jq in /usr/bin/ in Sequoia.

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$ jq '.[] | messages | .thank_you' < strings.json

wait, maybe it's...

$ jq '. | .messages.thank_you' < strings.json

darn it! how about

$ jq '[].messages.thank_you' < strings.json

!??@@!

Figuring out what garbage to type into jq is the best thing about ChatGPT.

For some reason, I find it kinda funny you don't just ask the LLM to extract the values for you. Practically, your solution makes a lot of sense -- way fewer tokens, less likely to make weird one-off errors, can verify the response makes basic sense or re-use the code off-line or with sensitive data...

But if I were watching Star Trek, they would definitely just ask the computer to grab the fields and it would be a done deal!

I'm rarely just using jq once. It's almost always going into a script, often where I only have placeholder data to test it with.

Plus, you know, I actually learn how jq works and will need to ask the Magic Sky Oracle less often, in the future.

> Plus, you know, I actually learn how jq works

What's wrong with the docs? Relatedly, do you actually look up every filter and argument used in your AI-generated sample code in the jq docs?

jq's syntax is different, but well worth remembering.

i have some flash cards if you'd like. a teensy amount of effort pays huge dividends with swiss knife software like this (and things like matplotlib, tar CLI options, etc)

Wow, that might be the best part of the update. System Integrity Protection shields /usr, /bin, and /sbin, so I prefer to use the system provided executables in those directories when possible.

interesting

    % /usr/bin/jq --version
    jq-1.6-159-apple-gcff5336-dirty

I can't know what "-dirty" implies, but https://github.com/jqlang/jq/commit/cff5336 is a pretty random commit from 2022 :-(

https://github.com/apple-oss-distributions/distribution-macO... hasn't been updated with a "jq" directory yet

"dirty" usually means that the commit doesn't correspond to any specific version tag in the repo (or whatever other mechanism is used to map commits to versions).

Incorrect: https://git-scm.com/docs/git-describe#Documentation/git-desc...

> If the working tree has local modification "-dirty" is appended to it.

and one can see their invocation of --dirty here: https://github.com/jqlang/jq/blob/cff5336ec71b6fee396a95bb0e...

1.6? Wonder why they went with an outdated version.

If you think this is bad then don’t check the version of bash it ships with.

Whoa, you're right. How did you know? The developer notes only seem to talk about API changes

I manage a lot of Macs, been beta testing since June.

Now that's the real feature!

Is it the BSD jq from 1995? </s>

Jk, thanks for the info! It's nice to know it's available on the system by default when writing scripts for my team.

Nah just the last GPL2 licensed version from 2008

ope wait that's just bash

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