ZNOL(1)                                                   ZNOL(1)

NAME

       znol - notify via Zephyr upon login or logout of interest-
       ing people

SYNOPSIS

       znol [ on|off ] [ -f file ] [ -u username ] [ -l ] [ -q ]

DESCRIPTION

       Znol provides a way for you to be notified when "interest-
       ing"  people log in or out.  It uses the Zephyr(1) Notifi-
       cation Service, which causes a message to appear  on  your
       screen  for  every  person  specified in a namelist (which
       defaults to $HOME/.anyone).  The namelist should have  one
       login  name  per line.  Any line starting with `#' is con-
       sidered a comment and ignored.  Anyone in the namelist who
       is  logged  in when znol is executed is printed to stdout.
       The control arguments are as follows:

       on|off      Turns notification on or off.

       -f          The namelist file is taken  to  be  file.   If
                   file  is  "-", then the standard input is used
                   instead of a file. If file does not exist,  an
                   error  message  is  printed,  and  znol exits.
                   This option may not  be  used  in  conjunction
                   with the -u option.

       -l          Causes  znol  to  just  list the people in the
                   namelist who are currently logged in,  without
                   subscribing  to  the  login  messages.    This
                   option may not be used in conjunction with the
                   -q option.

       -q          Disables  printing  who is currently logged in
                   when subscribing.  This option may not be used
                   in conjunction with the -l option.

       -u          Instead  of  reading  a  file  to  specify the
                   "interesting" users, the next argument is used
                   as  the  only "interesting" user.  This option
                   may not be used in  conjunction  with  the  -f
                   option.

EXAMPLES

            znol
       reads  the standard namelist file, prints the locations of
       any users named therein which can be found on the  system,
       and enters subscriptions for notices about those users.
            znol -l -u foo
       prints the location (if visible) of the user 'foo'.

FILES

       $HOME/.anyone

ZNOL(1)                                                   ZNOL(1)

SEE ALSO

       anyone(SIPB),   nol(SIPB),  zctl(1),  zephyr(1),  zwgc(1),
       zhm(8), zephyrd(8)
       Project Athena Technical Plan Section E.4.1, `Zephyr Noti-
       fication Service'

AUTHOR

       Robert S. French (MIT-Project Athena)

RESTRICTIONS

       Copyright  (c) 1987,1988 by the Massachusetts Institute of
       Technology.  All Rights Reserved.
       zephyr(1) specifies the terms and conditions for redistri-
       bution.