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.