#!/bin/sh

ROOT_UID=0      # Only users with $UID 0 have root privileges.
E_NOTROOT=67    # Non-root exit error.

# Run as root, of course.
if [ "$UID" -ne "$ROOT_UID" ]; then
  echo "Must be root to run this script."
  exit $E_NOTROOT
fi

echo "*** smartctl -a /dev/sdb ***"
smartctl -a /dev/sdb
echo "*** smartctl -a /dev/sdc ***"
smartctl -a /dev/sdc
echo "*** smartctl -a /dev/sdd ***"
smartctl -a /dev/sdd