On Thu, Aug 29, 2019 at 10:25:50AM -0500, Valeri Galtsev wrote: > root at point:/home/valeri # cd > root at point:~ # whoami > root > root at point:~ # rm -rf / > rm: "/" may not be removed > > Somebody is really clever in this World ;-) Well, FreeBSD folks made my day > (again!). Note, that that I did on my live workstation (yes, I did test it > on throw-away system first ;-) - so I can copy and paste what I got to this > email. GNU coreutils also has that feature, you can't run 'rm -rf /' there either, you need to run it with --no-preserve-root. This was added to Coreutils in 2003. Be careful in FreeBSD, if you have POSIXLY_CORRECT defined, it will let you rm -rf /. -- Jonathan Billings <billings at negate.org>