Ruby Environment Manager (RVM) is a tool that will allow you to download and install multiple versions of Ruby, one of the programming languages that we teach at Flatiron School. Installing RVM for Ubuntu is the first step in installing Ruby on your Ubuntu operating system.
- Open the "Ubuntu" application using the "Start" menu
- Type
sudo apt-get install software-properties-commonand press<Enter> - You may be asked to enter your Ubuntu terminal password
- Type
sudo apt-add-repository -y ppa:rael-gc/rvmand press<Enter> - Type
sudo apt-get updateand press<Enter> - Type
sudo apt-get install rvmand press<Enter>(Note: if you are asked "Do you want to continue [Y/n]", type "Y" and press<Enter>) - Type
sudo usermod -a -G rvm $USERand press<Enter> - Close the "Ubuntu" application
- Open the "Ubuntu" application using the "Start" menu
- Type
rvmand press<Enter>
If you see a long message ending in "For additional documentation, please visit
https://rvm.io", continue below. If rvm is not found, consult the
troubleshooting steps in the Verify and Troubleshoot your WSL2 Environment
Setup lesson later on in this module.
For our Ruby labs and lessons, we recommend that students use Ruby version 2.7.4 on Ubuntu. If Ruby Environment Manager (RVM) has been successfully installed, you can quickly install Ruby with a couple of commands.
- Open the "Ubuntu" application using the "Start" menu
- If the "Ubuntu" application is still open from the last step, close and re-open to prevent errors with running the next command.
- Type
rvm install 2.7.4 --defaultand press<Enter> - Enter your Ubuntu password if prompted
- Type
rvm listand press<Enter>
If you see a message starting with =* ruby-2.7.4, continue below.
Note: If you see that Ruby 2.7.4 is installed, but does not display
=*before it, close and reopen the "Ubuntu" application, then runrvm use 2.7.4 --default.
If you encounter issues installing a version of Ruby via RVM, try the following in Ubuntu:
- Run
rvm group add rvm $USER - Close Ubuntu and reopen
- Run
rvm fix-permissions
After running the last command, try installing Ruby again with
rvm install 2.7.4 --default
If you are continuing to have issues installing RVM, try running the following:
$ sudo usermod -a -G rvm $USERAfter running, try installing Ruby again.
Ruby Gems are small programs written in Ruby that help you to code more easily in Ruby. The gems you will install today include: Bundler, which allows you to keep track of which gems your projects need to work, and Pry, which allows you to pause your Ruby code when it runs and inspect it.
- Open the "Ubuntu" application using the "Start" menu
- Type
gem update --systemand press<Enter> - Type
gem install bundlerand press<Enter> - Type
gem install pryand press<Enter> - Type
gem listand press<Enter>
If you are able to complete each step without any issues and see pry and
bundler listed in the output from running gem list, continue to the next
lesson, Configuring Git and GitHub on WSL2.
React
Typescript
Django
Laravel
Facebook
Microsoft
Google
Alibaba
D3
Tencent