Man page - who(1)

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Manual

WHO

NAME
SYNOPSIS
DESCRIPTION
AUTHOR
REPORTING BUGS
SEE ALSO

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