How To Install ri on Kali Linux

Introduction

In this tutorial we learn how to install ri on Kali Linux.

What is ri

ri is:

ri is a command line tool that displays descriptions of built-in Ruby methods, classes, and modules. For methods, it shows you the calling sequence and a description. For classes and modules, it shows a synopsis along with a list of the methods the class or module implements.

This package provides ri command and descriptions about Ruby. This package provides the ri documentation for the Ruby standard library. The ri executable itself is in the ruby package.

This package is a dependency package, which depends on Debian’s default Ruby version (currently v2.7).

There are three methods to install ri on Kali Linux. We can use apt-get, apt and aptitude. In the following sections we will describe each method. You can choose one of them.

Install ri Using apt-get

Update apt database with apt-get using the following command.

sudo apt-get update

After updating apt database, We can install ri using apt-get by running the following command:

sudo apt-get -y install ri

Install ri Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ri using apt by running the following command:

sudo apt -y install ri

Install ri Using aptitude

If you want to follow this method, you might need to install aptitude on Kali Linux first since aptitude is usually not installed by default on Kali Linux. Update apt database with aptitude using the following command.

sudo aptitude update

After updating apt database, We can install ri using aptitude by running the following command:

sudo aptitude -y install ri

How To Uninstall ri on Kali Linux

To uninstall only the ri package we can use the following command:

sudo apt-get remove ri

Uninstall ri And Its Dependencies

To uninstall ri and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove ri

Remove ri Configurations and Data

To remove ri configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge ri

Remove ri configuration, data, and all of its dependencies

We can use the following command to remove ri configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ri

Dependencies

ri have the following dependencies:

• ruby2.7
• ruby2.7-doc

References

• ri website

Summary

In this tutorial we learn how to install ri package on Kali Linux using different package management tools: apt, apt-get and aptitude.