GNU/Linux |
CentOS 5.2 |
|
![]() |
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 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.
Written by Joseph Arceneaux, David MacKenzie, and Michael Stone.
Report bugs to <bug−coreutils@gnu.org>.
Copyright
© 2006 Free Software Foundation, Inc.
This is free software. You may redistribute copies of it
under the terms of the GNU General Public License
<http://www.gnu.org/licenses/gpl.html>. There is NO
WARRANTY, to the extent permitted by law.
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 who
should give you access to the complete manual.
![]() |
who(1) | ![]() |