How To Install Ruby on Ubuntu and LinuxMint using RVM

Ruby is a popular programming language among a large number of developers. Rails are the framework to run ruby language. Ruby language was created by Yukihiro “Matz” Matsumoto and first published in 1995. This article will help you to install ruby on rails on Ubuntu and LinuxMint Linux systems using RVM. RVM is the Ruby Version Manager helps for installing and managing Ruby language on systems.

Step 1 – Install RVM

First of all, install the latest stable version of RVM on your system using the following command. This command will automatically download all required files and install on your system.

Install CURL

apt-get install curl

Install RVM

Before installing RVM first we need to import public key in our system then use curl to install rvm in our system.

curl -sSL https://rvm.io/mpapis.asc | sudo gpg2 --import -
curl -sSL https://rvm.io/pkuczynski.asc | sudo gpg2 --import -
curl -sSL https://get.rvm.io | sudo bash -s stable

After installing RVM first we need to set up rvm environment using below command. so that current shell takes new environment settings.

source /etc/profile.d/rvm.sh

Install Ruby Dependencies

Install all the dependencies for installing Ruby automatically on the system. Run below command on terminal.

rvm requirements

Step 2 – List Available Ruby Versions

Get a list of available versions of Ruby language. You can install any version of your choice or requirements showing on the list.

rvm list known

[ruby-]1.8.6[-p420]
[ruby-]1.8.7[-head] # security released on head
[ruby-]1.9.1[-p431]
[ruby-]1.9.2[-p330]
[ruby-]1.9.3[-p551]
[ruby-]2.0.0[-p648]
[ruby-]2.1[.10]
[ruby-]2.2[.10]
[ruby-]2.3[.8]
[ruby-]2.4[.6]
[ruby-]2.5[.5]
[ruby-]2.6[.3]
[ruby-]2.7[.0-preview1]
ruby-head

Step 3 – Install Ruby on Ubuntu

RVM is useful for installation of multiple Ruby versions on the single system. Use the following command to install required Ruby on your system. As shown below example will install Ruby 2.4.1 on your system.

rvm install 2.6

[Sample Output]

Searching for binary rubies, this might take some time.
No binary rubies available for: ubuntu/18.04/x86_64/ruby-2.6.3.
Continuing with compilation. Please read 'rvm help mount' to get more information on binary rubies.
Checking requirements for ubuntu.
Requirements installation successful.
Installing Ruby from source to: /usr/local/rvm/rubies/ruby-2.6.3, this may take a while depending on your cpu(s)...
ruby-2.6.3 - #downloading ruby-2.6.3, this may take a while depending on your connection...
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100 13.8M  100 13.8M    0     0  13.8M      0 --:--:-- --:--:-- --:--:-- 13.8M
ruby-2.6.3 - #extracting ruby-2.6.3 to /usr/local/rvm/src/ruby-2.6.3.....
ruby-2.6.3 - #configuring......................................................................
ruby-2.6.3 - #post-configuration..
ruby-2.6.3 - #compiling...........................................................................................
ruby-2.6.3 - #installing................
ruby-2.6.3 - #making binaries executable..
ruby-2.6.3 - #downloading rubygems-3.0.4
  % Total    % Received % Xferd  Average Speed   Time    Time     Time  Current
                                 Dload  Upload   Total   Spent    Left  Speed
100  862k  100  862k    0     0  24.0M      0 --:--:-- --:--:-- --:--:-- 24.0M
ruby-2.6.3 - #extracting rubygems-3.0.4.....
ruby-2.6.3 - #removing old rubygems........
ruby-2.6.3 - #installing rubygems-3.0.4.........................................
ruby-2.6.3 - #gemset created /usr/local/rvm/gems/[email protected]
ruby-2.6.3 - #importing gemset /usr/local/rvm/gemsets/global.gems................................................................
ruby-2.6.3 - #generating global wrappers.......
ruby-2.6.3 - #gemset created /usr/local/rvm/gems/ruby-2.6.3
ruby-2.6.3 - #importing gemsetfile /usr/local/rvm/gemsets/default.gems evaluated to empty gem list
ruby-2.6.3 - #generating default wrappers.......
ruby-2.6.3 - #adjusting #shebangs for (gem irb erb ri rdoc testrb rake).
Install of ruby-2.6.3 - #complete

Step 4 – Setup Default Ruby Version

Use rvm command to set up default ruby version to be used by applications. You can install multiple versions as defined in the above step. Now select which version you want to use.

rvm use 2.6.3 --default 

Using /usr/local/rvm/gems/ruby-2.6.3

Step 5 – Check Ruby Version

Using following command you can check the current ruby version is used.

ruby --version

ruby 2.6.3p62 (2019-04-16 revision 67580) [x86_64-linux]

Step 6 – Install Rails

You can install the latest stable release version of Rails by running the following command. It will install Rails in global Gemset So that all applications share the same version of Rails.

gem install rails
rails -v

Or we can get a specific version of Rails by defining –version during installation. Visit here to get available rails versions.

gem install rails --version=5.2.3

Congratulation’s, 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.