This bash function improve security for your wp on aws

wp-permission-fix

// usage wp-permission-fix <wp dir>
wp-permissions-fix(){
  sudo chown -R ubuntu:www-data $1
  sudo find $1 -type d -exec chmod 755 {} \;
  sudo find $1 -type f -exec chmod 644 {} \;
  sudo find $1/wp-content/uploads/ -type d -exec chmod 775 {} \;
}