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.\" 4. 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.\" $FreeBSD$ 30.\" 31.Dd January 21, 2010 32.Dt W 1 33.Os 34.Sh NAME 35.Nm w 36.Nd "display who is logged in and what they are doing" 37.Sh SYNOPSIS 38.Nm 39.Op Fl dhin 40.Op Fl M Ar core 41.Op Fl N Ar system 42.Op Ar user ... 43.Sh DESCRIPTION 44The 45.Nm 46utility prints a summary of the current activity on the system, 47including what each user is doing. 48The first line displays the current time of day, how long the system has 49been running, the number of users logged into the system, and the load 50averages. 51The load average numbers give the number of jobs in the run queue averaged 52over 1, 5 and 15 minutes. 53.Pp 54The fields output are the user's login name, the name of the terminal the 55user is on, the host from which the user is logged in, the time the user 56logged on, the time since the user last typed anything, 57and the name and arguments of the current process. 58.Pp 59The options are as follows: 60.Bl -tag -width indent 61.It Fl d 62dumps out the entire process list on a per controlling 63tty basis, instead of just the top level process. 64.It Fl h 65Suppress the heading. 66.It Fl i 67Output is sorted by idle time. 68.It Fl M 69Extract values associated with the name list from the specified 70core instead of the default 71.Pa /dev/kmem . 72.It Fl N 73Extract the name list from the specified system instead of the 74default 75.Pa /boot/kernel/kernel . 76.It Fl n 77Do not attempt to resolve network addresses (normally 78.Nm 79interprets addresses and attempts to display them as names). 80.El 81.Pp 82If one or more 83.Ar user 84names are specified, the output is restricted to those users. 85.Sh FILES 86.Bl -tag -width ".Pa /var/run/utx.active" -compact 87.It Pa /var/run/utx.active 88list of users on the system 89.El 90.Sh COMPATIBILITY 91The 92.Fl f , 93.Fl l , 94.Fl s , 95and 96.Fl w 97flags are no longer supported. 98.Sh SEE ALSO 99.Xr finger 1 , 100.Xr ps 1 , 101.Xr uptime 1 , 102.Xr who 1 103.Sh HISTORY 104The 105.Nm 106command appeared in 107.Bx 3.0 . 108.Sh BUGS 109The notion of the 110.Dq current process 111is muddy. 112The current algorithm is 113.Do 114the highest numbered process on the terminal 115that is not ignoring interrupts, or, if there is none, the highest numbered 116process on the terminal 117.Dc . 118This fails, for example, in critical sections of programs like the shell 119and editor, or when faulty programs running in the background fork and fail 120to ignore interrupts. 121(In cases where no process can be found, 122.Nm 123prints 124.Ql \- . ) 125.Pp 126The 127.Tn CPU 128time is only an estimate, in particular, if someone leaves a background 129process running after logging out, the person currently on that terminal is 130.Dq charged 131with the time. 132.Pp 133Background processes are not shown, even though they account for 134much of the load on the system. 135.Pp 136Sometimes processes, typically those in the background, are printed with 137null or garbaged arguments. 138In these cases, the name of the command is printed in parentheses. 139.Pp 140The 141.Nm 142utility does not know about the new conventions for detection of background 143jobs. 144It will sometimes find a background job instead of the right one. 145