4.1. If You Login as User

echo "Please enter a directory name for the pictures."
read DIRPATH
mkdir ~/picture/$DIRPATH
su -c "/sbin/modprobe usb-storage; mount -t vfat /dev/sda1 /mnt/camera;
/etc/rc.d/init.d/usb start;
mv /mnt/camera/dcim/100msdcf/*.jpg ~/picture/$DIRPATH;
umount /mnt/camera;
chown -R your_login_name ~/picture/$DIRPATH"