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-.\" Copyright (c) 1980, 1990, 1991, 1993
-.\" The Regents of the University of California. All rights reserved.
-.\"
-.\" Redistribution and use in source and binary forms, with or without
-.\" modification, are permitted provided that the following conditions
-.\" are met:
-.\" 1. Redistributions of source code must retain the above copyright
-.\" notice, this list of conditions and the following disclaimer.
-.\" 2. Redistributions in binary form must reproduce the above copyright
-.\" notice, this list of conditions and the following disclaimer in the
-.\" documentation and/or other materials provided with the distribution.
-.\" 3. All advertising materials mentioning features or use of this software
-.\" must display the following acknowledgement:
-.\" This product includes software developed by the University of
-.\" California, Berkeley and its contributors.
-.\" 4. Neither the name of the University nor the names of its contributors
-.\" may be used to endorse or promote products derived from this software
-.\" without specific prior written permission.
-.\"
-.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
-.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
-.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
-.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
-.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
-.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
-.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
-.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
-.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
-.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
-.\" SUCH DAMAGE.
-.\"
-.\" @(#)w.1 8.1 (Berkeley) 6/6/93
-.\"
-.Dd June 6, 1993
-.Dt W 1
-.Os BSD 4
-.Sh NAME
-.Nm w
-.Nd "who present users are and what they are doing"
-.Sh SYNOPSIS
-.Nm w
-.Op Fl hin
-.Op Fl M Ar core
-.Op Fl N Ar system
-.Op Ar user
-.Sh DESCRIPTION
-The
-.Nm w
-utility prints a summary of the current activity on the system,
-including what each user is doing.
-The first line displays the current time of day, how long the system has
-been running, the number of users logged into the system, and the load
-averages.
-The load average numbers give the number of jobs in the run queue averaged
-over 1, 5 and 15 minutes.
-.Pp
-The fields output are the user's login name, the name of the terminal the
-user is on, the host from which the user is logged in, the time the user
-logged on, the time since the user last typed anything,
-and the name and arguments of the current process.
-.Pp
-The options are as follows:
-.Bl -tag -width Ds
-.It Fl h
-Suppress the heading.
-.It Fl i
-Output is sorted by idle time.
-.It Fl M
-Extract values associated with the name list from the specified
-core instead of the default
-.Dq /dev/kmem .
-.It Fl N
-Extract the name list from the specified system instead of the
-default
-.Dq /kernel .
-.It Fl n
-Show network addresses as numbers (normally
-.Nm w
-interprets addresses and attempts to display them symbolically).
-.El
-.Pp
-If a
-.Ar user
-name is specified, the output is restricted to that user.
-.Sh FILES
-.Bl -tag -width /var/run/utmp -compact
-.It Pa /var/run/utmp
-list of users on the system
-.El
-.Sh SEE ALSO
-.Xr who 1 ,
-.Xr finger 1 ,
-.Xr ps 1 ,
-.Xr uptime 1 ,
-.Sh BUGS
-The notion of the
-.Dq current process
-is muddy.
-The current algorithm is ``the highest numbered process on the terminal
-that is not ignoring interrupts, or, if there is none, the highest numbered
-process on the terminal''.
-This fails, for example, in critical sections of programs like the shell
-and editor, or when faulty programs running in the background fork and fail
-to ignore interrupts.
-(In cases where no process can be found,
-.Nm w
-prints
-.Dq \- . )
-.Pp
-The
-.Tn CPU
-time is only an estimate, in particular, if someone leaves a background
-process running after logging out, the person currently on that terminal is
-.Dq charged
-with the time.
-.Pp
-Background processes are not shown, even though they account for
-much of the load on the system.
-.Pp
-Sometimes processes, typically those in the background, are printed with
-null or garbaged arguments.
-In these cases, the name of the command is printed in parentheses.
-.Pp
-The
-.Nm w
-utility does not know about the new conventions for detection of background
-jobs.
-It will sometimes find a background job instead of the right one.
-.Sh COMPATIBILITY
-The
-.Fl f ,
-.Fl l ,
-.Fl s ,
-and
-.Fl w
-flags are no longer supported.
-.Sh HISTORY
-The
-.Nm
-command appeared in
-.Ux 3.0 .
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