users and groups

[H.S.]

Brian Astill wrote:
> I've examined "man adduser" "man adduser.conf" and the contents 
> of /etc/adduser.conf /etc/group and /etc/passwd.
> Unfortunately I still can't see how to do what I want to do.  
> <sob>
> 
> A number of users are to use the same machine.  That isn't the 
> problem.
> 
> I want to set up another home directory which all can read (and 
> preferably few can write).  That directory might be owned by 
> root, group allofus.  Seems to me I need to have all my users in 
> group allofus as well as their personal group as part of the 
> setup.  BUT there doesn't seem to be a way of putting a user in 
> more than one group.

Let us say you have groups g1, g2, and g3, and users alice and others.

To make user alice a member of all the above groups (which I assume
already exist):
$> sudo adduser alice g1
$> sudo adduser alice g2
$> sudo adduser alice g3

and so on for other others and groups.





> EXTRA_GROUPS in adduser.conf seems to be designed for access to 
> various peripherals.  Maybe I'm missing something.
> 
> Advice would be welcome. 
> 
> 


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