On Sat, 03 Jun 2000, Mrinal Kalakrishnan wrote:
> Hi,
>
> Ghins Mathai typed:
> > -rw-r--r-- 1 root root 633514 Jun 3 18:55 space.usage
> > When I try writing it, I am not allowed (as no 'w' for others)
> > But when I try removing it I can. Why ???
>
> I think it has something to do with the fact that it lies in your home
> directory - which is owned by you. Thus, you can delete it. But you
This may be true, he might be able to delete/move the file because he
has write permissions to the containing directory.
> can't change it's mode or write to it because it would be a major
> security risk. Imagine if you could make the file executable and
>setuid (its still owned by root) and then write to it. :-)
Question of security risk :He doesn't have permission to do anything to
the file except read it. Therefore he cannot write to it.
Devdas Bhagat
--
"What the scientists have in their briefcases is terrifying."
-- Nikita Khrushchev
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