WHO (1) manpage
NAME who - show who is logged on
SYNOPSIS who [OPTION ]... [ FILE | ARG1 ARG2 ]
DESCRIPTION
-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
-i , --idle
add idle time as HOURS:MINUTES, . or old
(deprecated, use -u )
-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 bugs to <bug-coreutils@gnu.org>.
COPYRIGHT 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 PURPOSE.
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
should give you access to the complete manual.