Shell Programming and Scripting

DAT=`date +%d_%m_%Y`
BDIR="/home/userid/$DAT"
TD="/dev/st0"
LOGS="/scripts/$DAT"

clear
echo | tee $LOGS

if mt -f $TD status | grep 41010000 > /dev/null
then
echo "Tape Found in DRIVE" | tee -a $LOGS

mt -f $TD load

if test $? = 0
then
echo "Tape loaded successfully"
echo | tee -a $LOGS

SIZE=`du -sh $BDIR | cut -f1`
echo "Size of $DAT Directory: $SIZE" | tee -a $LOGS
echo | tee -a $LOGS

time_start=`date +%s`
echo "BACKUP START at" `date` | tee -a $LOGS
echo

tar -cvp -f $TD $BDIR | tee -a $LOGS

mt -f $TD offline
        if test $? = 0
        then
        echo "Tape unloaded sucessfully"
        else
        echo "Unloading Tape failed. Check it manually"
        fi

echo
else
echo "          Cartridge not found in DRIVE1"
echo "          Please Insert Cartridge in DRIVE1 Only"
sleep 6
exit 2
fi
echo | tee -a $LOGS

time_end=`date +%s`
time_elapsed=$((time_end - time_start))
echo "BACKUP FINISHED at" `date` | tee -a $LOGS
echo | tee -a $LOGS
echo "Backup Completed Time $(( time_elapsed / 60 )) Minute $(( time_elapsed % 60 )) Seconds" | tee -a $LOGS
echo | tee -a $LOGS

echo
read -p "Press Enter to continue.........." readDamKey

exit 0

ksh -n scriptname