railsInstall.sh

sudo apt-get install -y git-core curl zlib1g zlib1g-dev build-essential libssl-dev libreadline-dev libyaml-dev libsqlite3-dev libsqlite3-0 sqlite3 libxml2-dev libxslt1-dev libcurl4-openssl-dev python-software-properties libffi-dev apache2
sudo apt-get --ignore-missing install -y git-core curl openssl libssl-dev libcurl4-openssl-dev libreadline6 libreadline6-dev libgdm-dev libncurses5-dev automake autoconf libtool bison postgresql postgresql-contrib libpq-dev pgadmin3

gpg --keyserver hkp://keys.gnupg.net --recv-k 409B6B1796C275462A1703113804BB82D39DC0E3
curl -sSL https://get.rvm.io | bash -s stable
source ~/.rvm/scripts/rvm

rvm install 2.3.1
rvm use 2.3.1 --default

echo "gem: --no-ri --no-rdoc" > ~/.gemrc
gem install bundler
gem install rails

echo -e "\n- - - - - -\n"
echo -e "Checking versions:\n"


echo -n "Should be sqlite 3.8.1 or higher:       sqlite ";
sqlite3 --version;
echo -n "Should be rvm 1.27.0 or higher:         ";
rvm --version | sed '/^.*$/N;s/\n//g' | cut -c 1-11;
echo -n "Should be ruby 2.3.1:                   ";
ruby -v | cut -d " " -f 2;
echo -n "Should be Rails 5.0.0 or higher:        ";
rails -v;
echo -e "\n- - - - - -\n";

echo "If the versions match, everything is installed correctly. If the versions 
don't match or errors are shown, something went wrong with the automated process 
and we will help you do the installation the manual way at the event.

Congrats!
                                                                                 
Make sure that all works well by running the application generator command:         
    $ rails new project                                                       
                                                                                 
If you encounter the message:                                                    
    The program 'rails' is currently not installed.                              
                                                                                 
It is just a hiccup with the shell, solutions:                                   
    $ source ~/.rvm/scripts/rvm                                                  
    Allow login shell, example http://rvm.io/integration/gnome-terminal/"