>I've currently have a problem with this sets of commands (on
>NetBSD-1.5ALPHA/i386) on a server.
>this is because base home directory of our users can be in
>/comptes/invites, /comptes/permanents or /comptes/stagiaires and default
>groups can be 100 or 200.

May not help you much but my adduser.sh is designed to cope with the 
above setup - different defaults depending on where user's home dir is.
My ftp site is down until I get a DSL line in, so I've put a copy
of adduser.sh in ftp://ftp.netbsd.org/pub/incoming/sjg/

--sjg