Filter jq - Shell/Bash

Filter jq is a command-line tool for manipulating JSON data. It is particularly useful for extracting and transforming data from complex JSON structures.

Installation

Filter jq can be installed on Linux, macOS, and Windows.

Linux

On Ubuntu or Debian, filter jq can be installed with the following command:

sudo apt-get install jq

On other Linux distributions, filter jq can be installed via the package manager.

macOS

On macOS, filter jq can be installed with Homebrew:

brew install jq

Windows

On Windows, filter jq can be installed via the Scoop package manager:

scoop install jq

Usage

The basic usage of filter jq is to have it read a JSON file or string, and apply a filter expression to it. The filter expression selects a subset of the data, and optionally transforms it.

For example, the following command reads a JSON file and applies a filter expression to it:

jq '.foo | .bar' data.json

This command selects the foo key from the JSON data, then selects the bar key from the value associated with foo.

Filter expressions can be quite complex. See the jq documentation for more information.

Benefits

Filter jq provides a powerful way to manipulate complex JSON data structures, making it an essential tool for any programmer working with JSON data.

It is a lightweight and efficient tool, and can be easily integrated into shell scripts and other command-line workflows.

Filter jq also has a large community of users and developers, providing a wealth of resources and support for those using the tool.

In summary, filter jq is an essential tool for any programmer working with JSON data, providing a powerful and efficient way to extract and transform complex data structures.