rbenv ubuntu server cheatsheet

rbenv-ubuntu.sh

## ubuntu server with bash shell

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bash_profile
echo 'eval "$(rbenv init -)"' >> ~/.bash_profile
git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build


## verify
type rbenv
#=> "rbenv is a function"

## list all available versions:
rbenv install -l

## install a Ruby version:
rbenv install 2.2.1

## uninstall a Ruby version:
rbenv uninstall 2.2.1

## Set application specific version number (written in `.ruby-version`)
rbenv local 2.2.2

## Unset application specific version number
rbenv local --unset

## Set global version number for a user (written in `~/.rbenv/version`)
rbenv global 2.2.2

## Unset application specific version number
rbenv global --unset

## System version of ruby
The special version name system tells rbenv to use the system Ruby

## Set shell-specific version number
rbenv shell 2.2.2

## Unset application specific version number
rbenv shell --unset

## Installed versions
rbenv versions

## Current version
rbenv version

## ruby installed or gem installed which provides commands
rbenv rehash

## display path to ruby executable 
rbenv which