From: Julius Szelagiewicz (julius@turtle.com)
Date: Fri May 30 2003 - 15:47:44 EDT
Dear Admins,
Frank Bonnet answered the question "what are my options" by
pointing me to /etc/netgroup, hence the addendum to the previous summary.
julius
> I am posting full text of Bill Hassell's reply as a perfect
> summary. I addition, there is a nice trick from Nick Stoker. The original
> guestion was:
> I need to add several hundred users to a group. From reading man
> pages it follows that I have to add them on a single line in /etc/groups.
> The LINE_MAX value in limits.h is 2048. What are my options?
>
> On Wed, 28 May 2003, Bill Hassell wrote:
> > It's really not documented very well, but you can repeat the group ID
> > on multiple lines. I add about 10 usernames per line as in:
> >
> > mygroup::121:user1,user2,user3,user4,user5,user6,user7,user8,user9
> > mygroup::121:user11,user12,user13,user14,user15,user16,user17,user18,user19
> > mygroup::121:user21,user22,user23,user24,user25,user26,user27,user28,user29
> >
> > Verify functionality using the id command. Note that 10.20 (obsolete next
> > month) requires a symlink to /etc/logingroup. Version 11 and higher are
> > fine.
> > Bill Hassell
>
> And here is the Nick Stoker's trick:
> One way round this is to have extra lines with different group names but
> same group id, e.g. if main group is called staff and the gid was 110
>
> you would have
>
> staff::110:user1,user2,user3 etc...
>
> and on another line have
>
> staffsubgrp1::110:user4,user5,user6 etc.
>
> If you do an 'id' on user4 it will come back with 'staff' and not
> 'staffgrp1'.
>
>
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