how to setup & use rvm coming from rbenv

how to setup & use rvm

If you are coming from rbven do that first:
`brew remove rbenv`
`rm -rf ~/.rbenv`

Then install rvm:
`gpg --keyserver hkp://pgp.mit.edu--recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3`
`\curl -sSL https://get.rvm.io | bash -s stable --ruby`

Enable tab completion:
`nano .bashrc`
`[[ -r $rvm_path/scripts/completion ]] && . $rvm_path/scripts/completion`

Install any version of ruby you want:
`rvm install ruby-version`

Create a gemset for a specific project:
`rvm gemset create specific-project`

and use the one you want:
`rvm gemset use test_project`

Then go to your project and install the gems to that gemset eg:
`gem install bundler && bundle install`

To automate the gemset changing per project basis you can write down the ruby version & gemset in the project:
`nano .rvmrc`
`rvm ruby_version@gemset`

To verify which gemset you use:
`rvm gemset name`