system-helpers/usr/local/bin/smartdnotify

#!/usr/bin/env bash

check_required() {
  type hostname &> /dev/null || { echo "Requiring 'hostname' but it's not installed"; exit 1; }
  type wall &> /dev/null || { echo "Requiring 'wall' but it's not installed"; exit 1; }
}

check_required

HOSTNAME=$(hostname)

SUBJECT="[smartd $HOSTNAME] $SMARTD_FAILTYPE"
MESSAGE=$(echo -e "$SMARTD_MESSAGE")
notifier "${SUBJECT}" "${MESSAGE}"
wall "$SMARTD_MESSAGE"