What are negative permissions?

[Matthias Apitz]

El día Sunday, September 16, 2012 a las 08:37:48PM +0100, Matthew Seaman escribió:

> It's where the group ownership of a file gives it fewer permissions than
> are allowed for the world in general.
> 
> Suppose you have a file with these permissions and ownership:
> 
> foo bar -rwx---r-x
> 
> ...

So far so good (and correct) the theory. But, could you imagine a real
world example where this makes any sense?

thanks

	matthias

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