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 BSD 4 38.Sh NAME 39.Nm w 40.Nd "who present users are and what they are doing" 41.Sh SYNOPSIS 42.Nm w 43.Op Fl hin 44.Op Fl M Ar core 45.Op Fl N Ar system 46.Op Ar user 47.Sh DESCRIPTION 48The 49.Nm w 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 Ds 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.Dq /dev/kmem . 73.It Fl N 74Extract the name list from the specified system instead of the 75default 76.Dq /kernel . 77.It Fl n 78Show network addresses as numbers (normally 79.Nm w 80interprets addresses and attempts to display them symbolically). 81.El 82.Pp 83If a 84.Ar user 85name is specified, the output is restricted to that user. 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 SEE ALSO 92.Xr finger 1 , 93.Xr ps 1 , 94.Xr uptime 1 , 95.Xr who 1 96.Sh BUGS 97The notion of the 98.Dq current process 99is muddy. 100The current algorithm is ``the highest numbered process on the terminal 101that is not ignoring interrupts, or, if there is none, the highest numbered 102process on the terminal''. 103This fails, for example, in critical sections of programs like the shell 104and editor, or when faulty programs running in the background fork and fail 105to ignore interrupts. 106(In cases where no process can be found, 107.Nm w 108prints 109.Dq \- . ) 110.Pp 111The 112.Tn CPU 113time is only an estimate, in particular, if someone leaves a background 114process running after logging out, the person currently on that terminal is 115.Dq charged 116with the time. 117.Pp 118Background processes are not shown, even though they account for 119much of the load on the system. 120.Pp 121Sometimes processes, typically those in the background, are printed with 122null or garbaged arguments. 123In these cases, the name of the command is printed in parentheses. 124.Pp 125The 126.Nm w 127utility does not know about the new conventions for detection of background 128jobs. 129It will sometimes find a background job instead of the right one. 130.Sh COMPATIBILITY 131The 132.Fl f , 133.Fl l , 134.Fl s , 135and 136.Fl w 137flags are no longer supported. 138.Sh HISTORY 139The 140.Nm 141command appeared in 142.Ux 3.0 . 143