How does the shell read the contents of a JSON file?

In the shell, we can utilize the jq tool to read and manipulate the contents of JSON files. jq is a lightweight JSON processing tool for the command line that assists in parsing and extracting JSON data in shell scripts.

Here is an example of reading the contents of a JSON file:

1. jq – a command-line JSON processor

sudo apt-get install jq

1. Read the contents of a JSON file.

cat file.json | jq .

This command will display the contents of the JSON file in the command line.

1. Extract the values of specific fields:

cat file.json | jq '.field_name'

Replace `field_name` with the name of the field you want to extract, this command will print out the value of that field.

With jq, you can easily read and manipulate content from JSON files in shell scripts. You can utilize the various features offered by jq to process JSON data based on your needs.