Date: Sun, 3 Oct 2004 23:59:39 +0200 From: Roman Neuhauser <neuhauser@chello.cz> To: Giorgos Keramidas <keramida@freebsd.org> Cc: freebsd-hackers@freebsd.org Subject: Re: Protection from the dreaded "rm -fr /" Message-ID: <20041003215939.GB951@isis.wad.cz> In-Reply-To: <20041002230226.GC1381@gothmog.gr> References: <BAY2-F27PUPeKljq65R00014185@hotmail.com> <20041002175704.GB2230@gothmog.gr> <p06110421bd84c87e063b@[128.113.24.47]> <20041002230226.GC1381@gothmog.gr>
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# keramida@freebsd.org / 2004-10-03 02:02:26 +0300:
> On 2004-10-02 17:22, Garance A Drosihn <drosih@rpi.edu> wrote:
> > At 8:57 PM +0300 10/2/04, Giorgos Keramidas wrote:
> > >On 2004-10-02 21:23, Lee Harr <missive@hotmail.com> wrote:
> > >> How about:
> > >> chflags sunlnk /
> > >> ?
> > >
> > >Setting sunlink on / will only protect the / directory, not its
> > >descendants, so you don't gain much.
> >
> > We could add a new flag "srunlnk", or maybe even "srm-r". The "rm"
> > command will always have to stat() the file it is given (just to
> > see if it is a directory), so it could check to see if this flag
> > is turned on. If it is turned on, then 'rm' could refuse to honor
> > any '-rf' request on that directory. [...]
>
> Hmmm. This sounds much better indeed :-)
have rm -r[f] behave just like
find $@ -flags +sunlnk -prune -o -delete
(I hope this is correct; if not: if the file has sunlnk among its
chflags, skip it and its descendants)
this is something I would, if not like, at least tolerate.
specialcasing / stinks. it reminds me of all the RHEL machines I
deal with at work that have alias rm rm -i, and I can only thank my
luck this hasn't costed me an arm;
ls | while read f; do rm -i $f; done
is very dangerous, at least in bash.
I have once deleted parts of my ~ with rm -fr *, but rm -fr / never
happened to me, prolly because of my strong dependence on the shell
completion.
(I hope I'm not too drunk.)
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