Configure Ruby Environment on Ubuntu

This is a simple guide for configuring a Ruby 2 environment on Ubuntu. This was tested for Ruby 2.7.2 on Ubuntu 22.04.3. All scripts are bash.

Compilers

sudo apt install build-essential

rvm

rvm is a Ruby version manager

Install:

gpg --keyserver hkp://keyserver.ubuntu.com --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
curl -sSL https://get.rvm.io | bash -s -- stable --ignore-dotfiles

Test:

source ~/.rvm/scripts/rvm
rvm info

Ruby

Install via rvm:

source ~/.rvm/scripts/rvm
rvm pkg install openssl
rvm install 2.7.2 --with-openssl-dir=$HOME/.rvm/usr

Test:

rvm use
ruby --version

# you should get output similar to this:
# ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x86_64-linux]