Find out what files/folders are taking up space in backups

[redfast00]

I use borg to back up my laptop to a remote server over SSH. This works great, I've been using this for 4 years now and I'm still happy.

One issue I do have, is that the size of the backups on the remote server is getting bigger than I expect. I've been careful with the --exclude, but I still suspect that there might be some files/directories that are back upped that don't need to be (for example, big files like Linux ISO's, or some caches, ...). I would like to see what directories take up how much space (this can be unified across all backups). Using that info, I could then add the files to the exclude list, and possibly remove them from old backups.

On Linux, this is pretty easy: du -h / 2>/dev/null | sort -h; ideally, there would be a similar output, but then accross all archives of a repository, taking into account the deduplication

...
55G	/home/user/VirtualBox VMs/WinDev2404Eval
69G	/var/cache
69G	/var/cache/pacman
69G	/var/cache/pacman/pkg
74G	/var
78G	/home/user/VirtualBox VMs
112G	/home/user/oldfs/home/jdv/ugent/archief
114G	/home/user/oldfs/home/jdv/ugent
144G	/home/user/Downloads
290G	/home/user/oldfs/home
290G	/home/user/oldfs/home/jdv
344G	/home/user/oldfs
741G	/home
741G	/home/user
858G	/

[ThomasWaldmann]

We have something related in borg2 (still beta, don't use it for production):

https://borgbackup.readthedocs.io/en/master/usage/analyze.html

IIRC the size display there is somehow flat though, so it won't include stuff contained in subdirs.