Fixes file permissions for a Laravel instance

Laravel-Permissions-Fix.sh

#!/bin/bash

if [ -z "$1" ]
  then
    echo ""
    echo "No user supplied!"
    echo "USAGE: ./Laravel-Permissions-Fix.sh user group directory"
    echo ""
    exit 1
fi

if [ -z "$2" ]
  then
    echo ""
    echo "No group supplied!"
    echo "USAGE: ./Laravel-Permissions-Fix.sh user group directory"
    echo ""
    exit 1
fi

if [ -z "$3" ]
  then
    echo ""
    echo "No directory supplied!"
    echo "USAGE: ./Laravel-Permissions-Fix.sh user group directory"
    echo ""
    exit 1
fi

sudo usermod -a -G $2 $1
sudo chown -R $1:$2 $3
sudo find $3 -type f -exec chmod 664 {} \;
sudo find $3 -type d -exec chmod 775 {} \;

cd $3
sudo chgrp -R www-data storage bootstrap/cache
sudo chmod -R ug+rwx storage bootstrap/cache

if [ $3 == "./" ]
  then
    sudo chmod +x $0
fi