2.11BSD#431 - /usr/man/cat1/who.0

WHO(1)		    UNIX Programmer's Manual		   WHO(1)


NAME
     who - who is on the system

SYNOPSIS
     who [ who-file ] [ am I ]

DESCRIPTION
     Who, without an argument, lists the login name, terminal
     name, and login time for each current UNIX user.

     Without an argument, who examines the /var/run/utmp file to
     obtain its information.  If a file is given, that file is
     examined.	Typically the given file will be /usr/adm/wtmp,
     which contains a record of all the logins since it was
     created.  Then who lists logins, logouts, and crashes since
     the creation of the wtmp file.  Each login is listed with
     user name, terminal name (with `/dev/' suppressed), and date
     and time.	When an argument is given, logouts produce a
     similar line without a user name.	Reboots produce a line
     with `x' in the place of the device name, and a fossil time
     indicative of when the system went down.

     With two arguments, as in `who am I' (and also `who are
     you'), who tells who you are logged in as.

FILES
     /var/run/utmp

SEE ALSO
     getuid(2), utmp(5)


Printed 11/26/99	November 27, 1996			1