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. Neither the name of the University nor the names of its contributors 13.\" may be used to endorse or promote products derived from this software 14.\" without specific prior written permission. 15.\" 16.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 17.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 18.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 19.\" ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 20.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 21.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 22.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 23.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 24.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 25.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 26.\" SUCH DAMAGE. 27.\" 28.\" @(#)w.1 8.1 (Berkeley) 6/6/93 29.\" $FreeBSD: src/usr.bin/w/w.1,v 1.12.2.5 2001/12/14 15:53:32 ru Exp $ 30.\" $DragonFly: src/usr.bin/w/w.1,v 1.5 2008/09/02 11:50:46 matthias Exp $ 31.\" 32.Dd September 2, 2008 33.Dt W 1 34.Os 35.Sh NAME 36.Nm w 37.Nd "display who is logged in and what they are doing" 38.Sh SYNOPSIS 39.Nm 40.Op Fl dhin 41.Op Fl M Ar core 42.Op Fl N Ar system 43.Op Ar user ... 44.Sh DESCRIPTION 45The 46.Nm 47utility prints a summary of the current activity on the system, 48including what each user is doing. 49The first line displays the current time of day, how long the system has 50been running, the number of users logged into the system, and the load 51averages. 52The load average numbers give the number of jobs in the run queue averaged 53over 1, 5 and 15 minutes. 54.Pp 55The fields output are the user's login name, the name of the terminal the 56user is on, the host from which the user is logged in, the time the user 57logged on, the time since the user last typed anything, 58and the name and arguments of the current process. 59.Pp 60The options are as follows: 61.Bl -tag -width Ds 62.It Fl d 63dumps out the entire process list on a per controlling 64tty basis, instead of just the top level process. 65.It Fl h 66Suppress the heading. 67.It Fl i 68Output is sorted by idle time. 69.It Fl M 70Extract values associated with the name list from the specified 71core instead of the default 72.Pa /dev/kmem . 73.It Fl N 74Extract the name list from the specified system instead of the 75default 76.Pa /boot/kernel . 77.It Fl n 78Don't attempt to resolve network addresses (normally 79.Nm 80interprets addresses and attempts to display them as names). 81.El 82.Pp 83If one or more 84.Ar user 85names are specified, the output is restricted to those users. 86.Sh FILES 87.Bl -tag -width /var/run/utmp -compact 88.It Pa /var/run/utmp 89list of users on the system 90.El 91.Sh COMPATIBILITY 92The 93.Fl f , 94.Fl l , 95.Fl s , 96and 97.Fl w 98flags are no longer supported. 99.Sh SEE ALSO 100.Xr finger 1 , 101.Xr ps 1 , 102.Xr uptime 1 , 103.Xr who 1 104.Sh HISTORY 105The 106.Nm 107command appeared in 108.Bx 3.0 . 109.Sh BUGS 110The notion of the 111.Dq current process 112is muddy. 113The current algorithm is ``the highest numbered process on the terminal 114that is not ignoring interrupts, or, if there is none, the highest numbered 115process on the terminal''. 116This fails, for example, in critical sections of programs like the shell 117and editor, or when faulty programs running in the background fork and fail 118to ignore interrupts. 119(In cases where no process can be found, 120.Nm 121prints 122.Dq \- . ) 123.Pp 124The 125.Tn CPU 126time is only an estimate, in particular, if someone leaves a background 127process running after logging out, the person currently on that terminal is 128.Dq charged 129with the time. 130.Pp 131Background processes are not shown, even though they account for 132much of the load on the system. 133.Pp 134Sometimes processes, typically those in the background, are printed with 135null or garbaged arguments. 136In these cases, the name of the command is printed in parentheses. 137.Pp 138The 139.Nm 140utility does not know about the new conventions for detection of background 141jobs. 142It will sometimes find a background job instead of the right one. 143