Process JSON in bash with jq on the command line

The JSON (JavaScript Object Notation) format is widely used to represent data structures and is frequently used to exchange data between different layers of an application. We probably know how to interact with JSON-formatted data with the most used programming languages such as parsing JSON with python, but what if we need to interact with it from the command line, or in a bash script?

In this tutorial, we will see how we can accomplish such a task by using the jq utility and we will learn its basic usage.
Each data value has a text string called a “name” or “key.”. Together, they’re known as name: value pairs, or key: value pairs. A colon (:) separates a key from its value.

An “object” is a collection of key: value pairs. In a JSON file, an object begins with an open curly brace ({) and ends with a closing brace (}). JSON also supports “arrays,” which are ordered lists of values. An array begins with an opening bracket ([) and ends with a closing one (]).

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