NAME

       znol - notify via Zephyr upon login or logout of interesting people

SYNOPSIS

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

DESCRIPTION

       Znol  provides  a  way for you to be notified when "interesting" people log in or out.  It
       uses the Zephyr(1) Notification 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 considered  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

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 Notification 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 redistribution.