rbenv

rbenv is a Ruby Version Management tool and lets you easily switch between multiple versions of Ruby.

Installation

Requirements:

sudo apt install autoconf bison build-essential libssl-dev libyaml-dev \
libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm6 libgdbm-dev

To install:

curl -fsSL https://github.com/rbenv/rbenv-installer/raw/HEAD/bin/rbenv-installer | bash

and follow the instruction to load rbenv automatically.

To list all available versions of Ruby:

rbenv install -l

To install specific versions:

rbenv install 2.6.10
rbenv install 2.7.6

To show installed versions:

rbenv versions