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who(1) - who, who - show who is logged on - man 1 who

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WHO(1)                           User Commands                          WHO(1)

       who - show who is logged on

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

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

       -b, --boot
              time(1,2,n) of last system boot

       -d, --dead
              print dead processes

       -H, --heading
              print line of column headings

       -i, --idle
              add idle time(1,2,n) as HOURS:MINUTES, . or old (deprecated, use -u)

       -l, --login
              print system login(1,3,5) processes

              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(1,3,5) names and number of users(1,5) logged on

       -r, --runlevel
              print current runlevel

       -s, --short
              print only name, line, and time(1,2,n) (default)

       -t, --time
              print last system clock(3,n) change

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

       -u, --users
              list users(1,5) logged in(1,8)

              same as -T

              same as -T

       --help display this help and exit(3,n,1 builtins)

              output version(1,3,5) information and exit(3,n,1 builtins)

       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

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

       Report bugs to <>.

       Copyright  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  PARTICULAR

       The  full  documentation for who is maintained as a Texinfo manual.  If
       the info(1,5,n) and who programs are properly installed at your site, the com-

              info(1,5,n) coreutils who

       should give you access(2,5) to the complete manual.

who (coreutils) 5.2.1             March 2004                            WHO(1)

References for this manual (incoming links)