How to install Google Drive on Ubuntu 14.04?

Updated 9/15/2015 Due to Google's changing API you might be having problem during installation of Grive. So the site I was referencing have also changed their tutorial for installing Grive2.

You can find new tutorial on this new link: How to install Google Drive Grive2 on Ubuntu

To install Grive2 in Ubuntu, Linux Mint and derivatives by using the main WebUpd8 PPA, use the following commands:

sudo add-apt-repository ppa:nilarimogard/webupd8
sudo apt-get update
sudo apt-get install grive

Yes, It is true that there isn't a native google drive client for linux yet, so you couldn't get app on Software Center. And ways to install in 12.04 and 14.04 are somewhat different.

Old outdated reference Tutorial How to install Google Drive on Ubuntu 14.04

There is no official client of Google Drive for Linux based OSes, you can use grive/grive-tools though.

sudo add-apt-repository ppa:thefanclub/grive-tools
sudo apt-get update
sudo apt-get install grive-tools

Then search for grive in the dash and follow the installers instructions.