$ sudo apt-get update
====[start]git 설치하기
$ sudo apt-get install git
====[start]ruby 깔기전 세팅
$ sudo apt-get install git-core curl zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties
====[start]rbenv 설치 후 rbenv 통해서 ruby 설치하기
$ cd
$ git clone git://github.com/sstephenson/rbenv.git .rbenv
$ echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
$ echo 'eval "$(rbenv init -)"' >> ~/.bashrc
$ exec $SHELL
$ git clone git://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build
$ echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc
$ exec $SHELL
$ rbenv install 2.3.1
$ rbenv global 2.3.1
$ ruby -v
$ echo "gem: --no-ri --no-rdoc" > ~/.gemrc
====[start]rails 설치하기
$ sudo add-apt-repository ppa:chris-lea/node.js
$ sudo apt-get update
$ sudo apt-get install nodejs
$ gem install rails
$ rbenv rehash
====[start] rails 가 잘깔렸는지 버전 확인 (5.0.2 가 나오면 성공!)
$ rails -v