SGH-T759 NAND Backup Script

#!/system/bin/sh

clear

selection=
until [ "$selection" = "0" ]; do
    echo ""
    echo "SGH-T759 NAND BACKUP TOOL"
    echo ""
    echo "Scripted By: Geofferey Eakins"
    echo ""
    echo "BACKUP MENU"
    echo "1 - Make me God"
    echo "2 - Create Backup Directory"
    echo "3 - Backup /system"
    echo "4 - Backup /data"
    echo "5 - Backup /cache"
    echo "6 - AIO"
    echo "7 - Create ODIN package"
    echo "8 - Clean up (Deletes directory/files!)"
    echo ""
    echo "0 - exit program"
    echo ""
    echo -n "Enter selection: "
    read selection
    echo ""
    case $selection in
        1 ) su ; backup ;;
        2 ) mkdir /sdcard/NAND ; echo "/sdcard/NAND directory created..." ; sleep 5 ; clear ;;
        3 ) echo "Backing up SYSTEM..." ; dd if=/dev/block/stl9 of=/sdcard/NAND/factoryfs.rfs bs=4096 ; sleep 10; clear ;;
        4 ) echo "Backing up DATA..." ; dd if=/dev/block/stl10 of=/sdcard/NAND/dbdata.rfs bs=4096 ; sleep 10 ; clear ;;
        5 ) echo "Backing up CACHE..." ; dd if=/dev/block/stl11 of=/sdcard/NAND/cache.rfs bs=4096 ; sleep 10 ; clear ;;
        6 ) dd if=/dev/block/stl9 of=/sdcard/NAND/factoryfs.rfs bs=4096 ; dd if=/dev/block/stl10 of=/sdcard/NAND/dbdata.rfs bs=4096 ; dd if=/dev/block/stl11 of=/sdcard/NAND/cache.rfs bs=4096 ; sleep 10 ; clear ;;
        7 ) echo "Creating ODIN package. This may take a while..." ; sleep 1 ; cd /sdcard/NAND ; tar -cvf SGH-T759-ODIN.tar factoryfs.rfs dbdata.rfs cache.rfs ; sleep 5 ; clear ;;
        8 ) echo "/sdcard/NAND directory deleted..." ; sleep 5 ; cd /sdcard ; rm -r NAND ; clear ;;
        0 ) clear ; exit ;;
        * ) echo "INVALID Selection! Please enter 1-8 or 0" ; sleep 5 ; clear ;;
    esac
done