1.\" Copyright (c) 1980, 1990, 1991, 1993 2.\" The Regents of the University of California. All rights reserved. 3.\" 4.\" Redistribution and use in source and binary forms, with or without 5.\" modification, are permitted provided that the following conditions 6.\" are met: 7.\" 1. Redistributions of source code must retain the above copyright 8.\" notice, this list of conditions and the following disclaimer. 9.\" 2. Redistributions in binary form must reproduce the above copyright 10.\" notice, this list of conditions and the following disclaimer in the 11.\" documentation and/or other materials provided with the distribution. 12.\" 3. All advertising materials mentioning features or use of this software 13.\" must display the following acknowledgement: 14.\" This product includes software developed by the University of 15.\" California, Berkeley and its contributors. 16.\" 4. Neither the name of the University nor the names of its contributors 17.\" may be used to endorse or promote products derived from this software 18.\" without specific prior written permission. 19.\" 20.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 21.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 22.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 23.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 24.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 25.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 26.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 27.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 28.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 29.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 30.\" SUCH DAMAGE. 31.\" 32.\" @(#)w.1 8.1 (Berkeley) 6/6/93 33.\" $FreeBSD: src/usr.bin/w/w.1,v 1.12.2.5 2001/12/14 15:53:32 ru Exp $ 34.\" $DragonFly: src/usr.bin/w/w.1,v 1.3 2006/02/17 19:39:15 swildner Exp $ 35.\" 36.Dd June 6, 1993 37.Dt W 1 38.Os 39.Sh NAME 40.Nm w 41.Nd "display who is logged in and what they are doing" 42.Sh SYNOPSIS 43.Nm 44.Op Fl dhin 45.Op Fl M Ar core 46.Op Fl N Ar system 47.Op Ar user ... 48.Sh DESCRIPTION 49The 50.Nm 51utility prints a summary of the current activity on the system, 52including what each user is doing. 53The first line displays the current time of day, how long the system has 54been running, the number of users logged into the system, and the load 55averages. 56The load average numbers give the number of jobs in the run queue averaged 57over 1, 5 and 15 minutes. 58.Pp 59The fields output are the user's login name, the name of the terminal the 60user is on, the host from which the user is logged in, the time the user 61logged on, the time since the user last typed anything, 62and the name and arguments of the current process. 63.Pp 64The options are as follows: 65.Bl -tag -width Ds 66.It Fl d 67dumps out the entire process list on a per controlling 68tty basis, instead of just the top level process. 69.It Fl h 70Suppress the heading. 71.It Fl i 72Output is sorted by idle time. 73.It Fl M 74Extract values associated with the name list from the specified 75core instead of the default 76.Dq /dev/kmem . 77.It Fl N 78Extract the name list from the specified system instead of the 79default 80.Dq /kernel . 81.It Fl n 82Don't attempt to resolve network addresses (normally 83.Nm 84interprets addresses and attempts to display them as names). 85.El 86.Pp 87If one or more 88.Ar user 89names are specified, the output is restricted to those users. 90.Sh FILES 91.Bl -tag -width /var/run/utmp -compact 92.It Pa /var/run/utmp 93list of users on the system 94.El 95.Sh COMPATIBILITY 96The 97.Fl f , 98.Fl l , 99.Fl s , 100and 101.Fl w 102flags are no longer supported. 103.Sh SEE ALSO 104.Xr finger 1 , 105.Xr ps 1 , 106.Xr uptime 1 , 107.Xr who 1 108.Sh HISTORY 109The 110.Nm 111command appeared in 112.Bx 3.0 . 113.Sh BUGS 114The notion of the 115.Dq current process 116is muddy. 117The current algorithm is ``the highest numbered process on the terminal 118that is not ignoring interrupts, or, if there is none, the highest numbered 119process on the terminal''. 120This fails, for example, in critical sections of programs like the shell 121and editor, or when faulty programs running in the background fork and fail 122to ignore interrupts. 123(In cases where no process can be found, 124.Nm 125prints 126.Dq \- . ) 127.Pp 128The 129.Tn CPU 130time is only an estimate, in particular, if someone leaves a background 131process running after logging out, the person currently on that terminal is 132.Dq charged 133with the time. 134.Pp 135Background processes are not shown, even though they account for 136much of the load on the system. 137.Pp 138Sometimes processes, typically those in the background, are printed with 139null or garbaged arguments. 140In these cases, the name of the command is printed in parentheses. 141.Pp 142The 143.Nm 144utility does not know about the new conventions for detection of background 145jobs. 146It will sometimes find a background job instead of the right one. 147