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 users 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 | |
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/>
COPYRIGHT
Copyright © 2009 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' | |