I want to back up a large directory (100+ G, thousands++ of files) to an external server using a WebDAV upload (I used to use rsync for this in the past, but the WebDAV host recommends the duck CLI tool.
I'm currently using duck with the --existing upload --synchronize options. In the past, I've used rsync with the --delete option, because if I delete something on my machine I generally want to delete it on the remote backup as well (I have a separate Time Machine backup for when I really need to retrieve deleted things, anyway).
Is there a way to get duck to have the same behaviour? Or am I trying to do it wrong?
There is currently no way to delete files using the synchronization feature. There is an enhancement request for this in ticket #222.