127 lines
4.1 KiB
Groff
127 lines
4.1 KiB
Groff
.\" $NetBSD: w.1,v 1.18 2005/01/11 09:39:12 wiz Exp $
|
|
.\"
|
|
.\" 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. 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 January 11, 2005
|
|
.Dt W 1
|
|
.Os
|
|
.Sh NAME
|
|
.Nm w
|
|
.Nd who present users are and what they are doing
|
|
.Sh SYNOPSIS
|
|
.Nm
|
|
.Op Fl hinw
|
|
.Op Fl M Ar core
|
|
.Op Fl N Ar system
|
|
.Op Ar user
|
|
.Sh DESCRIPTION
|
|
The
|
|
.Nm
|
|
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 /netbsd .
|
|
.It Fl n
|
|
Show network addresses as numbers (normally
|
|
.Nm
|
|
interprets addresses and attempts to display them symbolically).
|
|
.It Fl w
|
|
Show wide output without truncating any fields.
|
|
.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 finger 1 ,
|
|
.Xr ps 1 ,
|
|
.Xr uptime 1 ,
|
|
.Xr who 1
|
|
.Sh HISTORY
|
|
The
|
|
.Nm
|
|
command appeared in
|
|
.Bx 3.0 .
|
|
.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
|
|
prints
|
|
.Dq \- . )
|
|
.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
|
|
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.
|