Ruby is an open-source framework used to make games, web application as well as behind the ruby-on-rails framework. In this tutorial, described steps to install Ruby on Debian 11.
Before you start installation, make sure that you must logged in with non-root user account with sudo privileges.
Installing Ruby from Debian Repositories
By default, Debian default repository includes Ruby package. So you can install it using
apt package manager.
Follow the below steps to install Ruby from the default Debian repositories:
Step 1 – Update Package Index
At first, you need to update the packages index list:
sudo apt update
sudo apt upgrade
Step 2 – Installing Ruby
After that, use below command to install ruby:
sudo apt install ruby-full -y
Step 2 – Verify Installation
You can verify the installation by issuing the below command and it will print the version of installed Ruby.
It should look like as below:
ruby 3.2.0p57 (2022-12-08 revision 63029) [x86_64-linux-gnu]
Install Ruby using Rbenv
Rbenv is a Ruby version management tool. Using this tool you can easily switch the version of Ruby on same system if installed multiple versions. By default Rbenv doesn’t handle installing Ruby versions so we also need to install
ruby-build which is a tool that will help you to install specific version of Ruby which you need.
Perform the below given steps to install Ruby using Rbenv:
Step 1 – Update Package List
First of all, you should update the package index list by typing:
sudo apt update
Step 2 – Install Dependencies
After that, we will install dependencies for installation of rbenv and ruby-build:
sudo apt install git curl libssl-dev libreadline-dev zlib1g-dev autoconf bison build-essential libyaml-dev libreadline-dev libncurses5-dev libffi-dev libgdbm-dev
Step 3 – Install Rbenv & Ruby Build
Next run the following curl command to install rbenv and ruby-build:
curl -sL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer | bash -
$HOME/.rbenv/bin to the system PATH.
If you are using Bash, run:
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc echo 'eval "$(rbenv init -)"' >> ~/.bashrc source ~/.bashrc
If you are using Zsh run:
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.zshrc echo 'eval "$(rbenv init -)"' >> ~/.zshrc source ~/.zshrc
Step 4 – Set Default Version
Select the latest and stable version of Ruby and you can set default version as per your need.
rbenv install 3.2.0
rbenv global 3.2.0
Step 5 – Verify Installation
You can confirm installation by issuing below command:
It should show output as below:
ruby 3.2.0p222 (2022-12-08) [x86_64-linux-gnu]
Ruby Program Example
We are going to create a simple ruby program. So create a
demo.rb file using your favorite editor:
sudo nano demo.rb
Paste below lines in to that file:
puts "Ruby Simple Demo"
Save file and exit from editor using
demo.rb file issue below command:
It will print simple output as below:
Ruby Simple Demo
You have successfully learned multiple ways to install Ruby on Debian 11 Bullseye. If you have any problem or suggestion please leave a comment below.