I'd like to use my Dropbox account to backup my "Documents" folder, without running the risk of deleting something on Dropbox and my files being deleted on my computer. Is there any way to do this?
First off, you should be aware that you can recover deleted files from Dropbox. Also, Dropbox keeps a version history of your files. So you don't need to worry about accidentally deleting files from your Dropbox folder.
Backing up to your Dropbox folder is easy. Just use any back up tool, and set the destination to your Dropbox folder.
Here's how to do it with Ubuntu's Backup tool that comes with Ubuntu by default:
You can also use other backup tools like rsync .
Another method to back up files automatically is to create a symlink in your Dropbox directory, pointing to directories you want to back up.
For example, this will include your Documents folder in your Dropbox storage automatically:
You could turn Documents into a symbolic link that points to Dropbox, or use a 'backup' program like rsync to mirror the files.