Rsync: run backups like Time Machine and prevent removing non existing remote files/dirs on local folder I have this configuration: a NAS and a local hard drive on my Mac I want to backup incrementally, like Time Machine does.

When I do this rsync command:

rsync -va --exclude=.DS_Store --delete /Volumes/Drive/Folder /Volumes/RSYNC/Test


A folder "test" on my NAS (so the remote) will be deleted if it doesn't exist on my local hard drive.
I would like to keep the possibility to add more content on the remote folder without having it on my drive (more like a shared folder, other users can add content, but I come with my possibly updated data to backup everything).

Any idea how to do incremental backups (in another folder, with file versions, etc — like Time Machine in some way), without deleting non-existing content on remote from local?
Folder selection in Time Machine
You can specify folders to be excluded from your Time Machine backup, specifically, you could specify everything BUT your specific files.
system preferences &gt; time machine &gt; options.