On Fri, 28 Oct 2005, Sick Twist wrote:
> Having used Linux for some time, I thought I had a clear understanding of
> how file permissions work. However, I have no idea why I am able to delete a
> file owned by someone else for which I do not have write permission:
Whether you can delete a file depends on having write permission in its
directory, not on the permissions of the file itself. If you want to
truncate it and keep everything else -- inode, permissions, etc. -- the same
(e.g. "cat /dev/null > file"), you need to have write permission on the
file.
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