WHO

who ? show who is logged on

who [OPTION]... [ FILE | ARG1 ARG2 ]

?H, ??heading

print line of column headings

?i, ?u, ??idle

add user idle time as HOURS:MINUTES, . or old

?l, ??lookup

attempt to canonicalize hostnames via DNS

?m

only hostname and user associated with stdin

?q, ??count

all login names and number of users logged on

?s

(ignored)

?T, ?w, ??mesg

add user’s message status as +, - or ?

??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.

Report bugs to <bug-sh-utils@gnu.org>.

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 who

should give you access to the complete manual.

Copyright © 1999 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.