man zlocate (Commandes) - find a user using Zephyr
NAME
zlocate - find a user using Zephyr
SYNOPSIS
zlocate [ -a | -d ] user ...
DESCRIPTION
Zlocate uses the Zephyr(1) Notification Service to find where a user is currently logged in. If the user is not logged in, or has set his location information such that you do not have access to see it, zlocate prints "Hidden or not logged-in". Otherwise, each machine that the user is currently logged into is printed, along with the time of login and location. The location is usually the X window system display name of the user's display, but may be the terminal name if he is not using X or for some other reason is only using the terminal interface to zwgc(1).
By default, all zlocate requests are authenticated using Kerberos. If you do not have kerberos tickets, or for some other reason do not want to authenticate, the -d option will turn off authentication. The -a option is the default, authentication on.
DIAGNOSTICS
zlocate exits with status zero (0) if at least one user was found, and one (1) if no users were found.
SEE ALSO
zctl(1), zephyr(1), znol(1), zwgc(1), zhm(8), zephyrd(8), X(1)
Project Athena Technical Plan Section E.4.1, `Zephyr Notification
Service'
AUTHORS
Robert S. French (MIT-Project Athena)
Marc Horowitz (MIT-Project Athena)