1WHO(1)                           User Commands                          WHO(1)
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NAME

6       who - show who is logged on
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SYNOPSIS

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

12       -a, --all
13              same as -b -d --login -p -r -t -T -u
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15       -b, --boot
16              time of last system boot
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18       -d, --dead
19              print dead processes
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21       -H, --heading
22              print line of column headings
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24       -l, --login
25              print system login processes
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27       --lookup
28              attempt to canonicalize hostnames via DNS
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30       -m     only hostname and user associated with stdin
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32       -p, --process
33              print active processes spawned by init
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35       -q, --count
36              all login names and number of users logged on
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38       -r, --runlevel
39              print current runlevel
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41       -s, --short
42              print only name, line, and time (default)
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44       -t, --time
45              print last system clock change
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47       -T, -w, --mesg
48              add user's message status as +, - or ?
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50       -u, --users
51              list users logged in
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53       --message
54              same as -T
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56       --writable
57              same as -T
58
59       --help display this help and exit
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61       --version
62              output version information and exit
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64       If  FILE is not specified, use /var/run/utmp.  /var/log/wtmp as FILE is
65       common.  If ARG1 ARG2 given, -m presumed: `am i'  or  `mom  likes'  are
66       usual.
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AUTHOR

69       Written by Joseph Arceneaux, David MacKenzie, and Michael Stone.
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REPORTING BUGS

72       Report bugs to <bug-coreutils@gnu.org>.
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75       Copyright © 2007 Free Software Foundation, Inc.
76       This  is  free  software.   You may redistribute copies of it under the
77       terms      of      the      GNU      General       Public       License
78       <http://www.gnu.org/licenses/gpl.html>.   There  is NO WARRANTY, to the
79       extent permitted by law.
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SEE ALSO

82       The full documentation for who is maintained as a Texinfo  manual.   If
83       the info and who programs are properly installed at your site, the com‐
84       mand
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86              info who
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88       should give you access to the complete manual.
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92GNU coreutils 6.9                 March 2008                            WHO(1)
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