Step 1 – Installing Requirements

First of all, you need to install all required packages for ruby installation on our system using the following command.

Step 2 – Install RVM

Now, install the latest stable version of RVM on your system using the following command. This command will automatically download all required files and install them on your system. After that install the latest stable RVM version on your system. Once the installation finished, run below command to load the RVM environment.

Step 3 – Verify Dependencies

Now use the following command to verify all dependencies are properly installed. This will install any missing dependencies on your system.

Step 4 – Install Ruby on CentOS

Now, your system is ready for the Ruby installation. You can find the available Ruby version for installation using the below command. Then install the required Ruby version on your system. Here, I am installing Ruby 2.7 on my CentOS system. You can simply replace the version to below command of your choice and install.

Step 5 – Setup Default Ruby Version

First of all, check the currently installed ruby versions on your system. So that we can find which version is using currently by the system and which is set to default. After that use rvm command to set up the default ruby version to be used by applications.

Step 6 – Verify Active Ruby Version

Using the following command you can check the currently active ruby version. Congratulation’s, Finally you have successfully installed Ruby on your system. Read our next articles to deploy Ruby with Apache or Ruby with Nginx web server with simple steps. References: 1.