Gabor Gombas <gombasg@sztaki.hu> writes: > IMHO you can safely remove an user/group _only_ if you have made sure > there are no files owned by that uid/group left on any filesystems (and > checking that may be tricky if the system uses ACLs, for example). "Any filesystems" here must include removable media not currently attached as well as garden-variety unmounted filesystems too. That's a tough task to automate.