A Step-by-Step Guide to Installing RVM- Ruby Version Manager on Ubuntu 20.04 LTS


Introduction to Ruby and RVM

Ruby is an open-source programming language that is known for its syntax and is widely used in building web applications. RVM, also known as Ruby Version Manager, is a command-line tool that allows you to easily switch between different versions of Ruby on your Ubuntu machine.

Installing Ruby Using Apt Package Manager

The easiest way to install Ruby on Ubuntu is using the apt package manager. To install Ruby with this method, run the following commands as root or a user with sudo privileges:

“`
$ sudo apt update
$ sudo apt install ruby-full
$ ruby –version
“`

The output will show you the Ruby version that has been installed on your computer.

Installing Ruby Using Rbenv

Rbenv is a lightweight command-line tool that allows you to change Ruby versions easily. To start using Rbenv, you need to install the required libraries and compilers by running the following command:

“`
$ sudo apt update
$ sudo apt install git curl autoconf bison build-essential libssl-dev libyaml-dev libreadline6-dev zlib1g-dev libncurses5-dev libffi-dev libgdbm6 libgdbm-dev libdb-dev
“`

Next, install Rbenv using the installation shell script. Run the following command to download and run the script:

“`
$ curl -fsSL https://github.com/rbenv/rbenv-installer/raw/master/bin/rbenv-installer | bash
“`

After installing Rbenv, add `$HOME/.rbenv/bin` to your PATH by running the following command, and verify that the installation was successful:

“`
$ echo ‘export PATH=”$HOME/.rbenv/bin:$PATH”‘ >> ~/.bashrc
$ echo ‘eval “$(rbenv init -)”‘ >> ~/.bashrc
$ source ~/.bashrc
$ rbenv -v
“`

To install a specific Ruby version, type the following commands:

“`
$ rbenv install
$ rbenv global
“`

Installing Ruby Using RVM

RVM is a command-line tool that allows you to manage multiple Ruby environments. To install Ruby using RVM, run the following commands:

“`
$ sudo apt update
$ sudo apt install curl g++ gcc autoconf automake bison libc6-dev libffi-dev libgdbm-dev libncurses5-dev libsqlite3-dev libtool libyaml-dev make pkg-config sqlite3 zlib1g-dev libgmp-dev libreadline-dev libssl-dev
$ gpg –keyserver hkp://keys.gnupg.net –recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
$ curl -sSL https://get.rvm.io | bash -s stable
$ source ~/.rvm/scripts/rvm
$ rvm install ruby
$ rvm –default use ruby
“`

Verify that Ruby has been installed successfully by running the following command:

“`
$ ruby -v
“`

FAQs

1. What is RVM?

RVM stands for Ruby Version Manager. It is a command-line tool that allows you to manage multiple Ruby environments on your machine.

2. How do I install Ruby on Ubuntu?

You can install Ruby on Ubuntu using the apt package manager, Rbenv or RVM. Follow the steps outlined in the article to install Ruby using any of these methods.

3. How do I switch to a different version of Ruby?

With Rbenv or RVM, you can easily switch between different versions of Ruby. Use the command `rbenv global ` or `rvm –default use ` to specify the version of Ruby you want to use.

4. Can I install multiple versions of Ruby on Ubuntu?

Yes, you can install multiple versions of Ruby on Ubuntu using Rbenv or RVM. These tools allow you to easily switch between different versions of Ruby on your machine.

Conclusion

In this tutorial, we have discussed three methods to install Ruby on Ubuntu- using the apt package manager, Rbenv, and RVM. We hope that this guide has been helpful to you and has made the installation process easier. If you have any questions or need further assistance, please feel free to reach out to us.

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Editorial Staff
Editorial Staffhttps://www.bollyinside.com
The Bollyinside editorial staff is made up of tech experts with more than 10 years of experience Led by Sumit Chauhan. We started in 2014 and now Bollyinside is a leading tech resource, offering everything from product reviews and tech guides to marketing tips. Think of us as your go-to tech encyclopedia!

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