google_drive_ruby_usage.rb

require "rubygems"
require "google_drive"

# Logs in.
# You can also use OAuth. See document of
# GoogleDrive.login_with_oauth for details.
session = GoogleDrive.login("username@gmail.com", "mypassword")

# Gets list of remote files.
for file in session.files
  p file.title
end

# Uploads a local file.
session.upload_from_file("/path/to/hello.txt", "hello.txt", :convert => false)

# Downloads to a local file.
file = session.file_by_title("hello.txt")
file.download_to_file("/path/to/hello.txt")

# Updates content of the remote file.
file.update_from_file("/path/to/hello.txt")