How to install Prezto globally for all users on Mac

Prezto is a set of configurations for your ZSH shell. Prezto is simple and easy to expand to add new functionalities and features.
This project did not receive updates for a long time but was retaken thanks to the help of other users on Github.

Now I will explain to you how to install Prezto globally on your OS X system following these steps:

Installation

We are going to install Prezto in this path: /etc/zsh/prezto to do this we need to have ZSH installed previously, you can follow my guide How to install ZSH on OS X using homebrew.

The first step is to clone the repository inside /etc/zsh:

sudo mkdir /etc/zsh
cd /etc/zsh
sudo git clone --recursive https://github.com/sorin-ionescu/prezto.git prezto

On OS X the ZSH configuration files are on the /etc directory so we need create these files: /etc/zlogin, /etc/zlogout, /etc/zshenv and modify /etc/zshrc, /etc/zprofile.

sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zlogin" > /etc/zlogin'
sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zlogout" > /etc/zlogout'
sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zshenv" > /etc/zshenv'
sudo chmod o+w /etc/zshrc
sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zpreztorc" >> /etc/zshrc'
sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zshrc" >> /etc/zshrc'
sudo chmod o-w /etc/zshrc
sudo chmod o+w /etc/zprofile
sudo bash -c 'echo "source /etc/zsh/prezto/runcoms/zprofile" >> /etc/zprofile'
sudo chmod o-w /etc/zprofile

Inside the file /etc/zsh/prezto/runcoms/zshrc we need replace this
${ZDOTDIR:-$HOME}/.zprezto/ with /etc/zsh/prezto/:

sudo sed -i '' 's~\${ZDOTDIR:-$HOME}/\.zprezto/~/etc/zsh/prezto/~g' /etc/zsh/prezto/runcoms/zshrc

Finally you can open a new session in your terminal and start using Prezto.