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UNIX for Dummies Questions & Answers
Help with shell commands
Post 302588814 by strawhatluffy on Tuesday 10th of January 2012 03:43:27 AM
01-10-2012
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+-----------------------------------------------------------------------------+
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LEARN ABOUT CENTOS
who
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 command info coreutils 'who invocation' should give you access to the complete manual. GNU coreutils 8.22 June 2014 WHO(1)