Install gem with sudo in user environment

installTmuxinator.bash

#!/bin/bash
# If you get permission denied error while using gem 'install tmuxinator'
# install tmuxinator in user environment
sudo -E gem install tmuxinator

# The -E part keeps your users environment intact.
# Else it would install it for the user root
# Thread: https://github.com/tmuxinator/tmuxinator/issues/27
# Credits: https://github.com/Chinggis6