Hello !
>From - https://code.google.com/p/plan9front/wiki/admin
Adding Users

Add a new user on the file server:

echo newuser username >>/srv/cwfs.cmd

If needed, make the new user a member of the upas (email) group:

echo newuser upas +username >>/srv/cwfs.cmd

The newuser filesystem command is described in the
fs(8)<http://man.aiju.de/8/fs> manpage.
Examine the '/adm/users' file to investigate the results.

To add a new user to the auth server, make sure auth/keyfs is running, then
set an auth password for the user:

auth/changeuser username

New users are created without a profile, mail directory, tmp directory
(needed to edit files with sam) or other confections. To install a default
profile for a new user, upon first login, run:

. /sys/lib/newuser

then edit /usr/username/lib/profile to your own specifications.

See cwfs(4) <http://man.aiju.de/4/cwfs> and fs(8) <http://man.aiju.de/8/fs>
 and auth(8) <http://man.aiju.de/8/auth>.




2013/12/23 Blake McBride <blake@mcbride.name>

> Greetings,
>
> I've searched the net to find a way to add a new user.  The following
> command doesn't work:
>
> con -l /srv/fscons
>
> I gather that command is for fossil, and fossil isn't used anymore.  I
> poked around /srv but couldn't find a substitute.  Appreciate any help.
>
> Blake
>
>


-- 
С наилучшими пожеланиями
Жилкин Сергей
With best regards
Zhilkin Sergey