bash getgdrive.sh FILE_ID OUTPUT_NAME
FILE_ID is the public id of the google drive file.
It is written in public URL(like below image)
e.g.)
if the public URL is below:
https://drive.google.com/open?id=0B4y35FiV1wh7QVR6VXJ5dWExSTQ
then FILE_ID is 0B4y35FiV1wh7QVR6VXJ5dWExSTQ
