Ruby on Rails on Ubuntu

1. Install RVM:

In order, copy and paste the following commands.

1. Add Repo (reference):

   sudo apt-add-repository -y ppa:rael-gc/rvm
   

2. Add Key Import Utility (reference):

   sudo apt install gnupg2
   

3. Add GPG Keys (reference):

   gpg2 --keyserver keyserver.ubuntu.com --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
   

4. Install RVM:

   sudo apt-get install rvm -y
   

5. Add your user to rvm group ($USER will automatically insert your username):

   sudo usermod -a -G rvm $USER
   

6. Now, in order to always load rvm, change the Gnome Terminal to always perform a login.
   • At terminal window, open the application menu, then Preferences. Click on Unnamed profile, select the Command tab and check Run command as login shell.
7. Open a new terminal window, then fix permissions and reboot:

   rvmsudo rvm cleanup all && rvm fix-permissions && sudo reboot
   

2. Installing Ruby

In order, copy and paste the following commands.

1. Configure RVM, Download, and Set Default Ruby (reference):

   rvm get stable
   

   rvm install 3.1.2
   

   rvm --default use 3.1.2
   

2. Check Version:

   ruby -v
   

3. Installing Rails

In order, copy and paste the following commands.

1. Configure the .gemrc file to skip the installation of Ruby documentation

   echo "gem: --no-document" >> ~/.gemrc
   

2. Install Rails with a specific version number:

   gem install rails -v 7.0.4
   

3. Check Version:

   rails -v
   

Install Bundler:

1. Installing Bundler with a specific version number:

   gem install bundler -v 2.3.14