The default installer of Dropbox for Ubuntu works with the Nautilus file manager. But this integration is not always desireable, below is a method to install Dropbox on your Ubuntu box without installing Nautilus.
Step 1: Download the latest version of Dropbox for your architecture. The links are available below:
Step 2: Extract the archive to ~/.dropbox-dist directory
Step 3: Test run Dropbox. Run the following command on your command prompt:
You should be prompted to enter your account information, once entered dropbox should be up and running.
Step 4: [Optional] Get Dropbox to start automatically when you login to your system.
Open your favourite text editor and type the following in it:
Save the file as “dropboxautostart” and give it executable permissions by the following command:
chmod u+x dropboxautostart
Now copy it to the startup directory based on your destop environment
Dropbox client should now be up and running on your system.