I'm trying to install Rails on my laptop running Ubuntu 15.10 by using a book called "Beginning Rails 4, 3rd Edition" by Apress. It uses the rvm method and I just wanted to know if anyone knew of an easier way to install Rails.
If you don't care about the ability of managing multiple ruby versions and gemsets, you can just install ruby using apt
$ sudo apt-get install ruby
Then install rails
$ gem install rails