Installing RBenv with ruby-build plugin

rbenv_install.sh

#!/bin/bash

####################################################################
# Script based on three references:
# https://github.com/sstephenson/rbenv
# https://github.com/sstephenson/ruby-build
# https://gist.github.com/jpfuentes2/2002954
####################################################################
# Run this script as a commom user (no need to 'sudo' it)
# However you will need to install these requirements before run this
#
# gcc-c++ patch readline readline-devel zlib zlib-devel
# libyaml-devel libffi-devel openssl-devel make bzip2 autoconf
# automake libtool bison iconv-devel git-core
####################################################################

# Check if rbenv is already installed
command -v rbenv >/dev/null 2>&1 && { echo "RBenv already installed. Get out of here ;)"; exit 0; }

# Check if Git is installed
command -v git >/dev/null 2>&1 || { echo >&2 "Error: Git not found. Install git first."; exit 1; }

# Installing RBenv
git clone https://github.com/sstephenson/rbenv.git ~/.rbenv

# Checking if RBenv instalation went well
if [ $? -gt 0 ]; then
  echo >&2  "Error: Git clone went wrong!";
  exit 1;
fi

# Altering your PATH
echo 'export PATH="$HOME/.rbenv/bin:$PATH"' >> ~/.bashrc
echo 'eval "$(rbenv init -)"' >> ~/.bashrc
. ~/.bashrc

# Installing as an rbenv plugin (recommended)
git clone https://github.com/sstephenson/ruby-build.git ~/.rbenv/plugins/ruby-build

# Checking if ruby-build instalation went well
if [ $? -gt 0 ]; then
  echo >&2  "Error: ruby-build instalation went wrong!";
  exit 1;
fi

# Testing instalation
type rbenv >/dev/null 2>&1 || { echo >&2 "Something went wrong with this instalation, please refer back to the reference URLs"; exit 1; }

echo "####################################################################"
echo "RBenv installed successfuly. Run 'rbenv' to see available actions"
echo "####################################################################"