who command help
who - show who is logged on
SYNOPSIS
who [OPTION]... [ FILE | ARG1 ARG2 ]
DESCRIPTION
-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.
REPORTING BUGS
Report bugs to <bug-sh-utils@gnu.org>.
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 who
should give you access to the complete manual.
Copyright © 1999 Free Software Foundation, Inc.
This is free software; see the source for copying condi
tions. There is NO warranty; not even for MERCHANTABILITY
or FITNESS FOR A PARTICULAR PURPOSE.
Comments - most recent first (Please feel free to answer questions posted by others!)
Shellie ( 09 Apr 2012, 19:51)
The functionality of the 'who' command on my server has changed. Up until
about 6 weeks ago it worked the way it should. Now when I issue 'who' I do
not see the other logged in users. I only see the user I am logged in as.
This server is a virtual server in hosted environment. So, I not
necessarily informed about all the server admin activity that goes on.
I inquired with the appropriate tech support, but was blown off with a
response that suggested our version of Linux (a fairly current versions of
RHEL) might not support the 'who' command. I say hogwash. I am absolutely
certain that I have used the command successfully in the not too distant
past and certainly in our RHEL environment.
Do you have any suggestions for what might cause this change?
Many thanks,
Shellie
I welcome your comments. However... I am puzzled by many people
who say "Please send me the Linux tutorial." This website *is* your Linux Tutorial! Read everything here, learn
all you can, ask questions if you like. But don't ask me to send what you already have. :-)
NO SPAM! If you post garbage, it will be deleted, and you will be banned.
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by Bob Rankin
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