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.\" $FreeBSD$ 34.\" 35.Dd June 6, 1993 36.Dt W 1 37.Os 38.Sh NAME 39.Nm w 40.Nd "display who is logged in and what they are doing" 41.Sh SYNOPSIS 42.Nm 43.Op Fl dhin 44.Op Fl M Ar core 45.Op Fl N Ar system 46.Op Ar user ... 47.Sh DESCRIPTION 48The 49.Nm 50utility prints a summary of the current activity on the system, 51including what each user is doing. 52The first line displays the current time of day, how long the system has 53been running, the number of users logged into the system, and the load 54averages. 55The load average numbers give the number of jobs in the run queue averaged 56over 1, 5 and 15 minutes. 57.Pp 58The fields output are the user's login name, the name of the terminal the 59user is on, the host from which the user is logged in, the time the user 60logged on, the time since the user last typed anything, 61and the name and arguments of the current process. 62.Pp 63The options are as follows: 64.Bl -tag -width indent 65.It Fl d 66dumps out the entire process list on a per controlling 67tty basis, instead of just the top level process. 68.It Fl h 69Suppress the heading. 70.It Fl i 71Output is sorted by idle time. 72.It Fl M 73Extract values associated with the name list from the specified 74core instead of the default 75.Pa /dev/kmem . 76.It Fl N 77Extract the name list from the specified system instead of the 78default 79.Pa /boot/kernel/kernel . 80.It Fl n 81Do not attempt to resolve network addresses (normally 82.Nm 83interprets addresses and attempts to display them as names). 84.El 85.Pp 86If one or more 87.Ar user 88names are specified, the output is restricted to those users. 89.Sh FILES 90.Bl -tag -width ".Pa /var/run/utmp" -compact 91.It Pa /var/run/utmp 92list of users on the system 93.El 94.Sh COMPATIBILITY 95The 96.Fl f , 97.Fl l , 98.Fl s , 99and 100.Fl w 101flags are no longer supported. 102.Sh SEE ALSO 103.Xr finger 1 , 104.Xr ps 1 , 105.Xr uptime 1 , 106.Xr who 1 107.Sh HISTORY 108The 109.Nm 110command appeared in 111.Bx 3.0 . 112.Sh BUGS 113The notion of the 114.Dq current process 115is muddy. 116The current algorithm is 117.Do 118the highest numbered process on the terminal 119that is not ignoring interrupts, or, if there is none, the highest numbered 120process on the terminal 121.Dc . 122This fails, for example, in critical sections of programs like the shell 123and editor, or when faulty programs running in the background fork and fail 124to ignore interrupts. 125(In cases where no process can be found, 126.Nm 127prints 128.Ql \- . ) 129.Pp 130The 131.Tn CPU 132time is only an estimate, in particular, if someone leaves a background 133process running after logging out, the person currently on that terminal is 134.Dq charged 135with the time. 136.Pp 137Background processes are not shown, even though they account for 138much of the load on the system. 139.Pp 140Sometimes processes, typically those in the background, are printed with 141null or garbaged arguments. 142In these cases, the name of the command is printed in parentheses. 143.Pp 144The 145.Nm 146utility does not know about the new conventions for detection of background 147jobs. 148It will sometimes find a background job instead of the right one. 149