The Google Drive client isn’t yet available for Linux and the old Google Docs FS doesn’t work too well with Google Drive, so besides the web interface, the best solution to get Google Drive on Linux right now is using Grive, an unofficial, open source, command line Linux client for Google Drive.
For now, the application is considered experimental and it lacks full sync, but it can upload and download new or changed files already (so you can access your files offline). What it can’t do yet is: wait for changes and automatically sync the files or delete files (when a file is deleted locally, it’s ignored and when it’s deleted remotely, it’s reuploaded if it exists locally).