jq - a command line tool for JSON manipulation

Have you ever used an online JSON viewer? Imagine being able to pretty print JSON from the comfort of your terminal. For example, if I have a json file called foo.json. I can pretty print it using the command.

jq . foo.json

Also, I can check the keys of the json like this

jq keys foo.json

I can access subset of a json by accessing using the key. For example, if the content of foo.json was:

{
    'level': 'warning',
    'message': 'A warning is a warning about something',
}

I can access the message by just doing this.

jq .message foo.json

We have just scratched the surface here. Stay tuned for other ways to use jq in your workflow.