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.

AUTHOR

Written by Joseph Arceneaux, David MacKenzie, and Michael Stone.

REPORTING BUGS

GNU coreutils online help: <https://www.gnu.org/software/coreutils/>

Report who translation bugs to <https://translationproject.org/team/>

SEE ALSO

Full documentation at: <https://www.gnu.org/software/coreutils/who>

or available locally via: info '(coreutils) who invocation'

COPYRIGHT

Copyright © 2018 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <https://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.