How to Install latest Ruby on Rails on Ubuntu 18.04 LTS

Step 1 - Install RVM (Ruby Version Manager) ...
Step 2 - Setup Ruby Latest Version. ...
Step 3 - Install Nodejs. ...
Step 4 - Configure Ruby Gem. ...
Step 5 - Install Ruby on Rails. ...
Step 6 - Setup PostgreSQL Database for Rails Development. ...
Step 7 - Create Your First App with Rails and PostgreSQL. ...
14 Comment(s)

How do I install the latest version of Ruby on Ubuntu?
How do I install the latest version of Ruby?
How do I install Ruby on Ubuntu?
How do I install a new Rails version?
How do I switch between versions of Ruby?
How do I downgrade Ruby Version?
Is Ruby on Rails dying?
Which version of Ruby should I use?
How do I run a Ruby file?
How do I find my ruby path?
Where is Ruby installed Ubuntu?
What is Ruby programing?

How do I install the latest version of Ruby on Ubuntu?

To install Ruby from the default Ubuntu repositories, follow these steps:

First, update the packages index: sudo apt update.
Install Ruby by typing: sudo apt install ruby-full.
To verify that the installation it was successful run the following command which will print the Ruby version: ruby --version.

How do I install the latest version of Ruby?

Install Ruby on Ubuntu with APT

Step 1: Open the Terminal application. First, we need to open up Terminal. ...
Step 2: Update APT. Before we install Ruby, we want to make sure that APT has the latest package lists. ...
Step 3: Install Ruby. ...
Step 4: Verify the installation.

How do I install Ruby on Ubuntu?

Just simply try sudo apt-get remove ruby , Or type sudo apt-get remove ruby and before pressing Enter press Tab multiple times to see what you can remove about ruby.

How do I install a new Rails version?

Rails Installation on Windows

Step 1: Check Ruby Version. First, check if you already have Ruby installed. ...
Step 2: Install Ruby. If Ruby is not installed, then download an installation package from rubyinstaller.org. ...
Step 3: Install Rails. ...
Step 4: Check Rails Version.

How do I switch between versions of Ruby?

If you choose rbenv :

Follow the all the installation and setup instructions.
Install ruby-build.
Run rbenv install x.x.x where x.x.x is the version (use rbenv install --list to see which ones are available.
Run rbenv global x.x.x to change your global Ruby version.

How do I downgrade Ruby Version?

As others have mentioned, its hard to come up with exact solution, in general to downgrade or switch versions for a user:

Install Ruby 1.8.7 (or locate it on your system if you have it already)
Edit your .bash_profile or .bashrc file to update your $PATH so that the 1.8.7 executable is found first. ...
7/bin/ruby.

Is Ruby on Rails dying?

Rails is not dead and even shows no signs of dying. You can just check out the list of popular tech startups built using RoR here. We have gathered reasons why Ruby on Rails is alive and shows no signs of serious illness, or give it up as a hopeless technology.

Which version of Ruby should I use?

Well the very obvious answer would be use the latest and stable version of Ruby. Considering your requests and vision for Ruby, Rails that are being up-grading process suggest to go the latest version of Ruby.

How do I run a Ruby file?

Running a Script

It's easy -- just create a file with the extension . rb , navigate to that file's directory from the command line, and run it using $ ruby filename. rb (the dollar sign is just the command prompt). You'll be able to gets from and puts to the command line now!

How do I find my ruby path?

Here are two simple ways to check for it.

In irb. Run irb and type: ...
From command line. Just type ruby -v. ...
In RVM. Are you using RVM? ...
In rbenv. Are you using rbenv? ...
Using which. Do you want to know where your ruby binary is installed? ...
Using gem env.

Where is Ruby installed Ubuntu?

Do not use sudo to install gems when Ruby is managed with rbenv. Each Ruby version is installed in the ~/. rbenv/versions directory and writeable by the user.

What is Ruby programing?

Ruby is an interpreted, high-level, general-purpose programming language. It was designed and developed in the mid-1990s by Yukihiro "Matz" Matsumoto in Japan. ... It supports multiple programming paradigms, including procedural, object-oriented, and functional programming.