.\" 2. Redistributions in binary form must reproduce the above copyright
.\" notice, this list of conditions and the following disclaimer in the
.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
.\" 4. Neither the name of the University nor the names of its contributors
.\" may be used to endorse or promote products derived from this software
.\" without specific prior written permission.
.Op Fl e Ar expiretime
.Op Fl s Ar newshell
.Op user
-.Pp
.Nm
.Op Fl oly
.Op Fl a Ar list
across a group of systems) as they control file access.
.Pp
While it is possible to have multiple entries with identical login names
-and/or identical user id's, it is usually a mistake to do so. Routines
+and/or identical user id's, it is usually a mistake to do so.
+Routines
that manipulate these files will often return only one of the multiple
entries, and that one by random selection.
.Pp
The
-.Ar group
+.Ar gid
field is the group that the user will be placed in at login.
Since
.Bx
numbers and finally
.Ar other information
which is a single comma delimited string to represent any additional
-gcos fields (typically used for site specific user information).
+gecos fields (typically used for site specific user information).
Note that
.Xr finger 1
will display the office location and office phone together under the
.Pp
Exception: the super-user on the NIS master server is permitted to
change any field.
-.Pp
.It
.Em "Password authentication is required" .
The
.Fl d
option, in which case the user-specified hostname will override
the default.
-.Pp
.It Fl o
Force the use of RPC-based updates when communicating with
.Xr rpc.yppasswdd 8
allows unrestricted changes to the NIS passwd maps using dedicated,
non-RPC-based mechanism (in this case, a
.Ux
-domain socket). The
+domain socket).
+The
.Fl o
flag can be used to force
.Nm
.Xr getusershell 3 ,
.Xr login.conf 5 ,
.Xr passwd 5 ,
+.Xr pw 8 ,
.Xr pwd_mkdb 8 ,
.Xr vipw 8
.Rs
.%A Robert Morris
-and
.%A Ken Thompson
.%T "UNIX Password security"
.Re
-.Sh BUGS
-User information should (and eventually will) be stored elsewhere.
.Sh HISTORY
The
.Nm
utility appeared in
.Bx 4.3 Reno .
+.Sh BUGS
+User information should (and eventually will) be stored elsewhere.