Question about file system permissions

[Marcelo Magno T. Sales]

Em Quarta 27 Dezembro 2006 04:25, Cameron Simpson escreveu:
> On 26Dec2006 13:46, Marcelo Magno T. Sales <marcelo.sales at sefaz.pe.gov.br> 
wrote:
> | Em Ter?a 26 Dezembro 2006 12:54, Marcelo Magno T. Sales escreveu:
>
> [...]
>
> | > user02, as expected, is not able to read nor modify the contents of
> | > this file, as he does not have read nor write permissions on it.
> | > However, he can delete the file, because he has write permissions on
> | > /test, once he's member of the group users.
> | > However, if user02 opens file.txt in VIM, edit it and then save it with
> | >
> | > :w!, the file is modified, saved, and its ownership is altered to
> | >
> | > user02:users. How can this happen?? How can VIM alter the ownership and
> | > write to this file, if user02 is not it's owner and have no permissions
> | > on it? user02 can't do that using chown, chmod nor chgrp, but using VIM
> | > he can?!
> |
> | Never mind. VIM must be removing the existing file and creating another
> | one with the same name, which it has permission to do. It does not
> | effectively change the existing file, it just replaces it.
>
> Yep. Does this annoy you as much as it does me?

Yes, it does :)

[]'s
Marcelo