On Wed 06 Jan 2021 at 16:32:02 (+0100), Yvan Masson wrote: > Hi list, > > Let's say I have a directory `/dir`. Is it possible to allow a user to > do whatever he wants inside this directory, but not to delete `/dir`? > > I can use Unix ACL if needed.
Take a look at your own home directory, which behaves more or less as you described. (IIRC Debian might set group ID on home directories.) I set up pseudo-home directories like this, eg music, pictures etc, and I place them under /home, rather than /, so that they reside in my encrypted /home partition. They're all chown'd to belong to me. Cheers, David.