Install prezto on ubuntu

prezto.sh

#!/bin/bash

prezto.sh(){
    #clear
    #sudo apt-get install -y git
    #sudo apt-get update && sudo apt-get install -y zsh
    # Get prezto
    #git clone --recursive https://github.com/sorin-ionescu/prezto.git ~/.zprezto

    # Backup zsh config if it exists
    if [ -f ~/.zshrc ];
       then
           mv ~/.zshrc ~/.zshrc.backup
    fi
    
    sudo apt install zsh
    zsh # use zsh
    git clone --recursive https://github.com/sorin-ionescu/prezto.git "${ZDOTDIR:-$HOME}/.zprezto"
    setopt EXTENDED_GLOB
    for rcfile in "${ZDOTDIR:-$HOME}"/.zprezto/runcoms/^README.md(.N); do
      ln -s "$rcfile" "${ZDOTDIR:-$HOME}/.${rcfile:t}"
    done

    # Create links to zsh config files
#     ln -s ~/.zprezto/runcoms/zlogin ~/.zlogin
#     ln -s ~/.zprezto/runcoms/zlogout ~/.zlogout
#     ln -s ~/.zprezto/runcoms/zpreztorc ~/.zpreztorc
#     ln -s ~/.zprezto/runcoms/zprofile ~/.zprofile
#     ln -s ~/.zprezto/runcoms/zshenv ~/.zshenv
#     ln -s ~/.zprezto/runcoms/zshrc ~/.zshrc
}