Shell Programming and Scripting

#!/bin/bash

disks=(`cat /etc/default/filesys | grep "bdev=/dev/d" | cut -c11-13`)
date=`date +%m%d%Y`
log=(/testscript_${disks[0]}_$date.log /testscript_${disks[1]}_$date.log\
 /testscript_${disks[2]}_$date.log /testscript_${disks[3]}_$date.log) 

echo ""
echo "****************************************************"
echo "*                                                                                          *"
echo "*   This script will give you the option to synchronize                     *"
echo "*   a individual drive or multiple drives from TST001 to                    *" 
echo "*   the corresponding drive or drives on TST003.                           *"
echo "*                                                                                          *"
echo "****************************************************"

 
echo ""
echo -n "Choose a drive to be sycnchronize:"
echo ""
echo ""
cat <<- ENDIT
	1) ${disks[0]}
	2) ${disks[1]}
	3) ${disks[2]}
	4) ${disks[3]}
	5) Synchronize multiple drives 
ENDIT
read choice
if [ $choice = "1"  ] || [ $choice = "2" ] || [ $choice = "3" ] || [ $choice = "4" ]
then
case $choice in
1) rsync -avz -e ssh --rsync-path=$RSYNC root@tst001:/du0/ /du0 | tee -a ${log[0]}
   echo "" | tee -a ${log[0]}
   ;;
2) rsync -avz -e ssh --rsync-path=$RSYNC root@tst001:/du1/ /du1 | tee -a ${log[1]}
   echo "" | tee -a ${log[1]}
   ;;
3) rsync -avz -e ssh --rsync-path=$RSYNC root@tst001:/du2/ /du2 | tee -a ${log[2]}
   echo "" | tee -a ${log[2]}
   ;;
4) rsync -avz -e ssh --rsync-path=$RSYNC root@tst001:/du3/ /du3 | tee -a ${log[3]}
   echo "" | tee -a ${log[3]}
   ;;
esac

elif [ $choice = "5" ] 
then
echo -n "Define the drives you want to synchronize: [ ex: du2 du3 ]"
echo ""
read -a drives
for I in ${drives[*]}
do
if [ $I = "du0" ]
then
rsync -avz -e ssh --rsync-path=$RSYNC root@tst001://${I}// //${I} | tee -a ${log[0]} 
echo "" | tee -a ${log[0]}
elif [ $I = "du1" ]
then
rsync -avz -e ssh --rsync-path=$RSYNC root@tst001://${I}// //${I} | tee -a ${log[1]}
echo "" | tee -a ${log[1]}
elif [ $I = "du2" ]
then
rsync -avz -e ssh --rsync-path=$RSYNC root@tst001://${I}// //${I} | tee -a ${log[2]}
echo "" | tee -a ${log[2]}
elif [ $I = "du3" ]
then
rsync -avz -e ssh --rsync-path=$RSYNC root@tst001://${I}// //${I} | tee -a ${log[3]}
echo "" | tee -a ${log[3]}

else
	echo "Not a valid data drive. Exiting program now!!!" 
	echo ""
	exit 1
fi