How To Install ruby-qr4r on Kali Linux

In this tutorial we learn how to install ruby-qr4r on Kali Linux. ruby-qr4r is QR code generator for Ruby

Introduction

In this tutorial we learn how to install ruby-qr4r on Kali Linux.

What is ruby-qr4r

ruby-qr4r is:

This Ruby library provides a generator of QR codes in the PNG format.

It relies on ImageMagick and the rqrcode to produce its output.

There are three methods to install ruby-qr4r 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 ruby-qr4r Using apt-get

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

sudo apt-get update

After updating apt database, We can install ruby-qr4r using apt-get by running the following command:

sudo apt-get -y install ruby-qr4r

Install ruby-qr4r Using apt

Update apt database with apt using the following command.

sudo apt update

After updating apt database, We can install ruby-qr4r using apt by running the following command:

sudo apt -y install ruby-qr4r

Install ruby-qr4r 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 ruby-qr4r using aptitude by running the following command:

sudo aptitude -y install ruby-qr4r

How To Uninstall ruby-qr4r on Kali Linux

To uninstall only the ruby-qr4r package we can use the following command:

sudo apt-get remove ruby-qr4r

Uninstall ruby-qr4r And Its Dependencies

To uninstall ruby-qr4r and its dependencies that are no longer needed by Kali Linux, we can use the command below:

sudo apt-get -y autoremove ruby-qr4r

Remove ruby-qr4r Configurations and Data

To remove ruby-qr4r configuration and data from Kali Linux we can use the following command:

sudo apt-get -y purge ruby-qr4r

Remove ruby-qr4r configuration, data, and all of its dependencies

We can use the following command to remove ruby-qr4r configurations, data and all of its dependencies, we can use the following command:

sudo apt-get -y autoremove --purge ruby-qr4r

Dependencies

ruby-qr4r have the following dependencies:

References

Summary

In this tutorial we learn how to install ruby-qr4r package on Kali Linux using different package management tools: apt, apt-get and aptitude.