Reindl Harald wrote:


Am 26.03.2013 21:08, schrieb Rick Stevens:
On 03/26/2013 10:35 AM, Reindl Harald issued this missive:


Am 26.03.2013 18:03, schrieb Matthew Saltzman:
this is safe since a very long time

[root@testserver:/tmp]$ LANG=c; /usr/bin/rm -rf .*
/usr/bin/rm: cannot remove directory: '.'
/usr/bin/rm: cannot remove directory: '..'

Does this not depend on where in the tree you are and what permissions
you have on . and ..?

how many more permissions will you have than root?

"rm" and "rmdir" take care to not delete "." or "..". "rm" also requires
the "-f" along with "-r" to delete non-empty directories. You don't
want to delete your current directory (".") and you sure don't want to
delete its parent ("..")

and you don't as proven above

I hate to say it, but I don't want to ever have to trust that the rm I'm getting is the one I expect and not some alias, function, thing earlier on a PATH, and that I'm on a recent system which protects me from being reckless. If I have to think that hard I'd rather just use something safer and not put my faith in a check which I know is not universal to all systems.

I am not a trusting person.


--
Bill Davidsen <david...@tmr.com>
  "We have more to fear from the bungling of the incompetent than from
the machinations of the wicked."  - from Slashdot
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