For some reason, my GDrive no longer allowed me to download files, it simply didn’t do anything beyond the “scanning for viruses” screen.
Fed up with that, I had a look around and came across the following open source project (Apache 2 licensed):
https://github.com/odeke-em/drive
There are instructions on how to install it straight from source:
http://www.howopensource.com/2015/01/google-drive-for-ubuntu-linux/
But you can also install it from a repository, which I came across here:
https://github.com/odeke-em/drive/wiki/PPA-Download-Stats
Install ppa and tool:
sudo add-apt-repository ppa:twodopeshaggy/drive
sudo apt-get install drive
One-off initialization of the synchronization directory (choose whatever location you like):
drive init ~/gdrive
cd gdrive
gdrive pull
Check out the command-line help:
drive
or
drive help