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Re:Linux Productivity Tools (2019) [pdf] by teraflop on Monday May 18, 2020 @08:09PM (#23229868)
I like jq (https://stedolan.github.io/jq/) for this purpose.

It's a very flexible tool for filtering, querying and manipulating JSON data, but when run with no arguments, it performs a no-op transformation that just pretty-prints its input.

Re:Linux Productivity Tools (2019) [pdf] by dvirsky on Monday May 18, 2020 @08:30PM (#23229997)
jq doesn't come pre-installed with every OS, python's json.tool does. So it's always there when you need it, no installation required, which is why I put it the same category of all those classic command-line tools.
Re:Linux Productivity Tools (2019) [pdf] by philwelch on Tuesday May 19, 2020 @02:19AM (#23231792)
I don’t actually believe my last Linux install came with a system Python. And as a Python developer I always end up using some tool or another to manage installations of multiple Python versions anyway. Furthermore jq just works as a classic command-line tool.
Re:Linux Productivity Tools (2019) [pdf] by traviscj on Tuesday May 19, 2020 @02:51AM (#23232028)
> ... just works as a classic command-line tool.

impossible to understate the value in: not frequently fucking up your ability to run the critical/mundane/everyday/musclememory commands you've come to rely on after maybe 100+ invocations/week as far back as you can remember just because someone you've never met wanted to bump the .ruby-version in your java monorepo

Re:Linux Productivity Tools (2019) [pdf] by dvirsky on Tuesday May 19, 2020 @02:15PM (#23238148)
What Linux distro do you use that it doesn't have Python on it?
Re:Linux Productivity Tools (2019) [pdf] by philwelch on Wednesday May 20, 2020 @12:01PM (#23248445)
Ubuntu but I think the same was true for Arch.
Re:Linux Productivity Tools (2019) [pdf] by dvirsky on Wednesday May 20, 2020 @12:24PM (#23248751)
What? Half of Ubuntu's internal stuff is written in Python. They've switched to Python 3 but I've never heard of Ubuntu without Python.
Re:Linux Productivity Tools (2019) [pdf] by philwelch on Wednesday May 20, 2020 @02:10PM (#23249946)
I’m sure that’s true and maybe I’m misremembering but I still think I had to apt install a Python runtime I could actually invoke from the shell.
Re:Linux Productivity Tools (2019) [pdf] by kabacha on Monday May 18, 2020 @08:37PM (#23230058)
jq is yet another bloated syntax to learn and I'd definitely refrain from suggesting it to anyone whos not working with json everyday.
Re:Linux Productivity Tools (2019) [pdf] by gen220 on Monday May 18, 2020 @09:20PM (#23230330)
I tend to agree, regretfully.

I’ve unfortunately often seen coworkers spend half an hour painstakingly crafting and debugging a jq query, that could have been cobbled together in a few minutes with grep and sed.

I think the issue is that jq’s interface makes it really hard to “narrow in” on the right solution, whereas grep is much more forgiving.

Re:Linux Productivity Tools (2019) [pdf] by michaelcampbell on Monday May 18, 2020 @09:45PM (#23230490)
I agree in the general case, but the syntax for pretty printing which is what he is doing is literally nothing.

Or 'jq', if you include the binary name.

Hardly "bloated".

Re:Linux Productivity Tools (2019) [pdf] by sigmonsays on Tuesday May 19, 2020 @09:11AM (#23234460)
i dont know if i'd call its syntax bloated at all.

jq is something i've hated learning but powerful beyond tying grep and awk together.

jq is a tool, and like every tool, requires some upfront learning. Once mastered its much more productive than the grep/awk/friends solution.

Take this example JSON

<pre> { "code": 42, "items": [ { "type":"color", "name":"red", "rgb": [120, 2, 2 ]}, { "type":"color", "name":"green", "rgb": [2, 120, 2]} ] } </pre>

for instance, to grab the rgb field for the color green... jq -r '.items | .[] | select(.name=="green") | .rgb

Re:Linux Productivity Tools (2019) [pdf] by benibela on Tuesday May 19, 2020 @12:10PM (#23236471)
An alternative would be to use XPath 3.1.

I am implementing XPath in a tool called Xidel.

There the syntax for the example is much simpler: xidel - -e '?items ?* [?name="green"] ?rgb'

Depends what kabacha means with bloated. The XPath syntax is more verbose, but less cryptic

Re:Linux Productivity Tools (2019) [pdf] by xgt001 on Tuesday May 19, 2020 @02:33AM (#23231895)
Agreed about the bloated syntax bit. Whenever I need to work with jq , I tend to trial with jid first and then use the actual syntax with jq. Convoluted if you think about it....