How To Install ruby-rqrcode on Ubuntu 18.04

In this tutorial we learn how to install ruby-rqrcode on Ubuntu 18.04. ruby-rqrcode is Ruby library for encoding QRCode (2D barcodes)

Introduction

In this tutorial we learn how to install ruby-rqrcode on Ubuntu 18.04.

What is ruby-rqrcode

ruby-rqrcode is:

rQRCode is a standalone, pure-Ruby library for generating QRCodes (2D barcodes). The simple interface allows you to create QR Code data structures ready to be displayed in the way you choose.

There are three methods to install ruby-rqrcode on Ubuntu 18.04. 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-rqrcode 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-rqrcode using apt-get by running the following command:

sudo apt-get -y install ruby-rqrcode

Install ruby-rqrcode Using apt

Update apt database with apt using the following command.

sudo apt update

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

sudo apt -y install ruby-rqrcode

Install ruby-rqrcode Using aptitude

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

sudo aptitude update

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

sudo aptitude -y install ruby-rqrcode

How To Uninstall ruby-rqrcode on Ubuntu 18.04

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

sudo apt-get remove ruby-rqrcode

Uninstall ruby-rqrcode And Its Dependencies

To uninstall ruby-rqrcode and its dependencies that are no longer needed by Ubuntu 18.04, we can use the command below:

sudo apt-get -y autoremove ruby-rqrcode

Remove ruby-rqrcode Configurations and Data

To remove ruby-rqrcode configuration and data from Ubuntu 18.04 we can use the following command:

sudo apt-get -y purge ruby-rqrcode

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

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

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

References

Summary

In this tutorial we learn how to install ruby-rqrcode package on Ubuntu 18.04 using different package management tools: apt, apt-get and aptitude.