#Instructions to install ruby using rbenv on GNU/Linux distributions

Instructions to install dependencies for Ubuntu based distributions

###First, ensure you have your Ubuntu install up to date:

sudo apt-get update

###Next, let's install the prerequisites we will need:

sudo apt-get -y 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 libffi-dev

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Instructions to install dependencies for Fedora/RPM based distributions

###First, ensure you have your Fedora install up to date:

sudo yum update

###Next, let's install the prerequisites we will need:

sudo yum install git-core curl make bzip2 gcc-c++ patch readline readline-devel zlib zlib-devel libyaml-devel libffi-devel libxslt-devel sqlite sqlite-devel openssl openssl-devel

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Instructions to install ruby using rbenv

Fire up your terminal, and copy paste the following commands

git clone https://github.com/sstephenson/rbenv.git ~/.rbenv

echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc

echo 'eval "$(rbenv init -)"' >> ~/.bashrc

Note: Zsh users please use ~/.zshrc in place of ~/.bashrc.

git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

echo 'export PATH="$HOME/.rbenv/plugins/ruby-build/bin:$PATH"' >> ~/.bashrc

exec $SHELL

git clone https://github.com/sstephenson/rbenv-gem-rehash.git ~/.rbenv/plugins/rbenv-gem-rehash

rbenv install 2.2.2

rbenv global 2.2.2

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

Check if its all installed

ruby -v

gem -v

If either of it doesn't return the version, there is an error.

###followed by...

gem install bundler

gem install rails

gem install therubyracer

rbenv rehash

Check if rails is installed correctly

rails -v

##Now install heroku

wget -qO- https://toolbelt.heroku.com/install.sh | sh

Follow this to install Nodejs (Optional)

https://www.digitalocean.com/community/tutorials/how-to-install-node-js-on-an-ubuntu-14-04-server

Follow this to install postgresql (Optional)

http://www.postgresonline.com/journal/archives/329-An-almost-idiots-guide-to-install-PostgreSQL-9.3,-PostGIS-2.1-and-pgRouting-with-Yum.html

gem install pg