if [ -d ~/.oh-my-zsh ]
 then
   echo "You already have Oh My Zsh installed. You'll need to remove ~/.oh-my-zsh if you want to install"
   exit
 else
   echo "Cloning Oh My Zsh..."
   /usr/bin/env git clone git://github.com/robbyrussell/oh-my-zsh.git ~/.oh-my-zsh
 fi
 
 echo "Looking for an existing zsh config..."

 if [ -f ~/.zshrc ] || [ -h ~/.zshrc ]

 then
   echo "Found ~/.zshrc. Backing up to ~/.zshrc.pre-oh-my-zsh";
   cp ~/.zshrc ~/.zshrc.pre-oh-my-zsh;
   rm ~/.zshrc;
 fi
 
 echo "Symlinking .zshrc to ~/.oh-my-zsh/"
 ln -s ~/.oh-my-zsh/zshrc ~/.zshrc
 
 echo "Time to change your default shell to zsh!"
 chsh -s /bin/zsh
 
 echo "Hooray! Oh My Zsh has been installed."

 source ~/.zshrc && /bin/zsh