WHO("1") manual page
Table of Contents
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
© 2008 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.
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.
Table of Contents
![[Go to CFHT Home Page]](/images/cfht-icon.gif){kind=icon}
Man Pages 
Back to Software Index 
Manpage Top Level