Setting up Rails dev environment on Ubuntu as of 2015

Rails dev Ubuntu

If you are on windows, start by setting up an Ubuntu in a VirtualBox
  = http://www.psychocats.net/ubuntu/virtualbox
  
First you wanna update Ubuntu
  $ sudo apt-get update
  $ sudo apt-get upgrade
  $ sudo apt-get dist-upgrade
  $ sudo reboot

Add repositories
  $ add-apt-repository ppa:nginx/stable
  $ add-apt-repository ppa:chris-lea/node.js
  $ sudo sh -c "echo 'deb http://apt.postgresql.org/pub/repos/apt/ precise-pgdg main' > /etc/apt/sources.list.d/pgdg.list"
  $ wget --quiet -O - http://apt.postgresql.org/pub/repos/apt/ACCC4CF8.asc | sudo apt-key add -
  
Install packages
  $ apt-get -y update
  $ apt-get -y install python-software-properties software-properties-common curl git-core postgresql-common postgresql postgresql-contrib libpq-dev telnet postfix nodejs fish
  
Install rvm + ruby + bundler
Visit https://www.ruby-lang.org/en/downloads/ to find out latest stable version, then put it in <version> placeholders below
  $ sudo apt-get -y install libgdbm-dev libncurses5-dev automake libtool bison libffi-dev
  $ curl -L https://get.rvm.io | bash -s stable
  $ source ~/.rvm/scripts/rvm
  $ rvm install <version>
  $ rvm use <version>@<PROJECT_NAME> --create
  $ rvm use <version>@<PROJECT_NAME> --default
  $ ruby -v
  $ echo "gem: --no-ri --no-rdoc" > ~/.gemrc
  $ gem install bundler  
  
Configure GIT
  $ git config --global color.ui true
  $ git config --global user.name "<YourGitName>"
  $ git config --global user.email "<YourEmail>"
  $ eval "$(ssh-agent -s)"
  $ ssh-keygen -t rsa -C "augusts@creo.mobi"
  $ sudo chmod 400 ~/.ssh/id_rsa
  $ ssh-add ~/.ssh/id_rsa
  $ ssh-add -l # See if is there
  $ sudo cat ~/.ssh/id_rsa.pub >> Add to git keys
  $ ssh -T git@github.com
  
Setup oh-my-fish
  $ git clone git://github.com/bpinto/oh-my-fish.git ~/.oh-my-fish
  $ cp ~/.oh-my-fish/templates/config.fish ~/.config/fish/config.fish
  $ nano  ~/.config/fish/config.fish << Put server defaults in
    # Have a look at https://gist.github.com/Epigene/f0c3754b1dac4a2da7a4