Download the dropbox-uploader script by Andrea Fabrizi from github as root

wget https://raw.github.com/andreafabrizi/Dropbox-Uploader/master/dropbox_uploader.sh --no-check-certificate

make it executable and run it

chmod +x dropbox_uploader.sh
./dropbox_uploader.sh

when executed for the first time you will be prompted with some some instructions to be able to upload/download to your dropbox account.
In short, you need to create a developer account and create an app that this little script will talk to.
So, head over to :

https://www2.dropbox.com/developers/apps

and click on “Create an App”, fil