Script to quickly scan the S.M.A.R.T. health status of all your hard drive devices in Linux (at least all the ones from /dev/sda to /dev/sdzz). You need smartctl installed on your system for this script to work, and your hard drives need to have S.M.A.R.T. capabilities (they probably do).

smartcheck.sh

#!/bin/bash

# install the smartctl package first! (apt-get install smartctl)

UID=$(id -u)

if [ $UID -eq 0 ]
then
   true
else
   echo 'Root privileges required'

   exit 1
fi

for drive in /dev/ada[0-99] /dev/ada[0-99]
do
   if [[ ! -e $drive ]]; then continue ; fi

   echo -n "$drive "

   smart=$(
      smartctl -H $drive 2>/dev/null |

      grep '^SMART overall' |

      awk '{ print $6 }'
   )

   [[ "$smart" == "" ]] && smart='unavailable'

   echo "$smart"

done

Adopted to work on BSD systems