Linux
Do the following....
Import key:
gpg --keyserver hkp: //keys.gnupg.net --recv-keys 409B6B1796C275462A1703113804BB82D39DC0E3 7D2BAF1CF37B13E2069D6956105BD0E739499BDB
Run script:
\curl -sSL https: //get.rvm.io | bash
Check available versions:
rvm remote known
Install ruby:
rvm install 2.4.1
Use ruby version:
rvm --default use 2.4.1
Install bundler:
gem install bundler