I just walk-through with the installation of Ruby on Rails on Ubuntu using RVM.
First I have logged in as the root user.
Then I started with the f
Can you use sudo find to locate the correct path of the rvm directory? If you find the path, you should be able to rerun the source ~/.rvm/scripts/rvm command with the correct path.
Also, I fully agree with the previous answers about not creating it as root. DigitalOcean was a pretty good tutorial on adding users https://www.digitalocean.com/community/tutorials/initial-server-setup-with-ubuntu-14-04