#To install dropbox cli, run sudo apt-get install nautilus-dropbox #To login to your dropbox dropbox start -i #Now a url will be provided, paste this url to your favorite browser and allow the sync. #Now start the dropbox deamon by dropbox start #Your dropbox account are now linked to your ubuntu. #Now enter your dropbox folder cd Dropbox #Then run this command to exclude all the folders dropbox exclude add * #This will exclude all the folders to be sync, except files under Dropbox root folder. #Now start including your selective sync folders. dropbox exclude remove fengubuntu #Hint: You can use --help to get help of a sub command, for example, dropbox exclude --help will show your how to use dropbox exclude command.