How To Install ruby-irb on CentOS 7

In this tutorial we learn how to install ruby-irb on CentOS 7. ruby-irb is The Interactive Ruby

Introduction

In this tutorial we learn how to install ruby-irb on CentOS 7.

What is ruby-irb

The irb is acronym for Interactive Ruby. It evaluates ruby expression from the terminal.

We can use yum or dnf to install ruby-irb on CentOS 7. In this tutorial we discuss both methods but you only need to choose one of method to install ruby-irb.

Install ruby-irb on CentOS 7 Using yum

Update yum database with yum using the following command.

sudo yum makecache

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

sudo yum -y install ruby-irb

Install ruby-irb on CentOS 7 Using dnf

If you don’t have dnf installed you can install DNF on CentOS 7 first. Update yum database with dnf using the following command.

sudo dnf makecache

After updating yum database, We can install ruby-irb using dnf by running the following command:

sudo dnf -y install ruby-irb

How To Uninstall ruby-irb on CentOS 7

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

sudo dnf remove ruby-irb

References

Summary

In this tutorial we learn how to install ruby-irb on CentOS 7 using yum and dnf.