Re: "Small" Bug - silly question again

[R Joseph Wright <rjoseph@nwlink.com>]

>           ...the hurd changes this somewhat to for non-logined
> users, by adding a new 4th rule somewhere, perhaps (not sure) like
> this:
> 
> 1. no userid      => access=---
> 2. userid==bam    => access=rwx
> 3. groupid==users => access=rw-
> 4. default        => access=r--
> 
> ACLs will allow you to setup different rules for each file, without
> being fixed to any given structure.
> 
> So, for instance, if I wanted to let a friend access a copy of
> my file, I could gives rules like:
> 
> 1. userid==bam => access=rwx
> 2. userid==friend1 => access=rwx
> 3. userid==friend2 => access=r-x
> 4. default => access=r--
> 
> (you could argue that these rules are a bit stupid, ie denying world
> execute permission, but allowing friend2 to execute. Still, this
> might be useful for SetUid programs).

Can you create as few or as many of these rules as you like?  Also, it
looks like there are no group IDs.