Installing Ruby with RVM Install RVM federico@~$ echo insecure >> ~/.curlrc federico@~$ curl -L https://get.rvm.io | bash -s stable --ruby federico@~$ source ~/.bash_profile Create a Gem set (Ruby and RoR) federico@~$ rvm install 1.8.6 federico@~$ rvm use 1.8.6 --default federico@~$ rvm gemset create rails123 federico@~$ ruby -v ruby 1.8.6 federico@~$ gem install rails -v 1.2.3 federico@~$ rails -v Rails 1.2.3 Switch back to your system federico@~$ rvm system federico@~$ rails -v Rails 2.3.5 Switch back to your RVM environment federico@~$ rvm 1.8.6@rails123 Delete Gem set federico@~$ rvm gemset delete rails123
