WHO(1)				 User Commands				WHO(1)



NAME
       who - show who is logged on

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

DESCRIPTION
       Print information about users who are currently logged in.

       -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

       -l, --login
	      print system login processes

       --lookup
	      attempt to canonicalize hostnames via DNS

       -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.

       GNU  coreutils  online  help:  <http://www.gnu.org/software/coreutils/>
       Report who translation bugs to <http://translationproject.org/team/>

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

COPYRIGHT
       Copyright (C) 2013 Free Software Foundation, Inc.  License GPLv3+:  GNU
       GPL version 3 or later <http://gnu.org/licenses/gpl.html>.
       This  is	 free  software:  you  are free to change and redistribute it.
       There is NO WARRANTY, to the extent permitted by law.

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 com-
       mand

	      info coreutils 'who invocation'

       should give you access to the complete manual.



GNU coreutils 8.22		 February 2016				WHO(1)