Directory and File Permissions

permissions.sh

#Find all files in the given path and apply permissions 664 to them
sudo find <path> -type f -exec chmod 664 {} \;
#Find all directories in the given path and apply permissions 775 to them
sudo find <path> -type d -exec chmod 775 {} \;
#Set the group id on the directory so that the files created in this directory in the future are automatically owned by the group
sudo find <path> /var/www -type d -exec chmod g+s {} \;