WHO linux command manual

WHO(1)                              User Commands                          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)

       -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.

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

REPORTING BUGS
       Report bugs to .

COPYRIGHT
       Copyright (C) 2004 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 coreutils who

       should give you access to the complete manual.



who (coreutils) 5.2.1              May 2004                            WHO(1)