redhat man page for who

WHO(1)									FSF								    WHO(1)

NAME
       who - show who is logged on

SYNOPSIS
       who [OPTION]... [ FILE | ARG1 ARG2 ]

DESCRIPTION
       -a, --all
	      same as -b -d --login -p -r -t -T -u

       -b, --boot
	      time of last system boot

       -d, --dead
	      print dead processes

       -H, --heading
	      print line of column headings

       -i, --idle
	      add idle time as HOURS:MINUTES, . or old (deprecated, use -u)

       --login
	      print system login processes (equivalent to SUS -l)

       -l, --lookup
	      attempt to canonicalize hostnames via DNS (-l is deprecated, use --lookup)

       -m     only hostname and user associated with stdin

       -p, --process
	      print active processes spawned by init

       -q, --count
	      all login names and number of users logged on

       -r, --runlevel
	      print current runlevel

       -s, --short
	      print only name, line, and time (default)

       -t, --time
	      print last system clock change

       -T, -w, --mesg
	      add user's message status as +, - or ?

       -u, --users
	      list users logged in

       --message
	      same as -T

       --writable
	      same as -T

       --help display this help and exit

       --version
	      output version information and exit

       If  FILE is not specified, use /var/run/utmp.  /var/log/wtmp as FILE is common.	If ARG1 ARG2 given, -m presumed: `am i' or `mom likes' are
       usual.

AUTHOR
       Written by Joseph Arceneaux, David MacKenzie, and Michael Stone.

REPORTING BUGS
       Report bugs to <bug-coreutils@gnu.org>.

COPYRIGHT
       Copyright (C) 2002 Free Software Foundation, Inc.
       This is free software; see the source for copying conditions.  There is NO warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICU-
       LAR PURPOSE.

SEE ALSO
       The  full  documentation  for who is maintained as a Texinfo manual.  If the info and who programs are properly installed at your site, the
       command

	      info who

       should give you access to the complete manual.

who (coreutils) 4.5.3						   February 2003							    WHO(1)