Manual Reference Pages  - WHO (1)

NAME

who - show who is logged on

CONTENTS

Synopsis
Description
Author
Copyright

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
--ips print ips instead of hostnames. with --lookup, canonicalizes based on stored IP, if available, rather than stored hostname
-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 who bugs to bug-coreutils@gnu.org
GNU coreutils home page: <http://www.gnu.org/software/coreutils/>
General help using GNU software: <http://www.gnu.org/gethelp/>
Report who translation bugs to <http://translationproject.org/team/>

COPYRIGHT

Copyright © 2011 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 command
info coreutils who invocation
should give you access to the complete manual.


GNU coreutils 8.12.197-032bb WHO (1) September 2011
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