BSD 4_4 release

[unix-history] / usr / src / usr.bin / w / w.1

diff --git a/usr/src/usr.bin/w/w.1 b/usr/src/usr.bin/w/w.1
index 6daea18..4e4f5d3 100644 (file)
--- a/usr/src/usr.bin/w/w.1
+++ b/usr/src/usr.bin/w/w.1
@@ -1,75 +1,141 @@
-.\" Copyright (c) 1980, 1990 Regents of the University of California.
-.\" All rights reserved.
+.\" Copyright (c) 1980, 1990, 1991, 1993
+.\"    The Regents of the University of California.  All rights reserved.

 .\"
 .\"

-.\" Redistribution and use in source and binary forms are permitted provided
-.\" that: (1) source distributions retain this entire copyright notice and
-.\" comment, and (2) distributions including binaries display the following
-.\" acknowledgement:  ``This product includes software developed by the
-.\" University of California, Berkeley and its contributors'' in the
-.\" documentation or other materials provided with the distribution and in
-.\" all advertising materials mentioning features or use of this software.
-.\" Neither the name of the University nor the names of its contributors may
-.\" be used to endorse or promote products derived from this software without
-.\" specific prior written permission.
-.\" THIS SOFTWARE IS PROVIDED ``AS IS'' AND WITHOUT ANY EXPRESS OR IMPLIED
-.\" WARRANTIES, INCLUDING, WITHOUT LIMITATION, THE IMPLIED WARRANTIES OF
-.\" MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE.
+.\" Redistribution and use in source and binary forms, with or without
+.\" modification, are permitted provided that the following conditions
+.\" are met:
+.\" 1. Redistributions of source code must retain the above copyright
+.\"    notice, this list of conditions and the following disclaimer.
+.\" 2. Redistributions in binary form must reproduce the above copyright
+.\"    notice, this list of conditions and the following disclaimer in the
+.\"    documentation and/or other materials provided with the distribution.
+.\" 3. All advertising materials mentioning features or use of this software
+.\"    must display the following acknowledgement:
+.\"    This product includes software developed by the University of
+.\"    California, Berkeley and its contributors.
+.\" 4. Neither the name of the University nor the names of its contributors
+.\"    may be used to endorse or promote products derived from this software
+.\"    without specific prior written permission.

 .\"
 .\"

-.\"     @(#)w.1        6.6 (Berkeley) 7/27/90
+.\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.

 .\"
 .\"

-.TH W 1 "%Q"
-.UC 4
-.SH NAME
-w \- who is logged in and what they are doing
-.SH SYNOPSIS
-.B w
-[
-.B \-hi
-] [ user ]
-.SH DESCRIPTION
-.I W
-prints a summary of the current activity on the system,
-including what each user is doing.
-The heading line shows the current time of day,
-how long the system has been up,
-the number of users logged into the system,
-and the load averages.
-The load average numbers give the number of jobs in the run queue
-averaged over 1, 5 and 15 minutes.
-.PP
-The fields output are:
-the users login name,
-the name of the tty the user is on,
-the host from which the user is logged in,
-the time the user logged on,
-the time since the user last typed anything,
-the name and arguments of the current process.
-.PP
+.\"     @(#)w.1        8.1 (Berkeley) 6/6/93
+.\"
+.Dd June 6, 1993
+.Dt W 1
+.Os BSD 4
+.Sh NAME
+.Nm w
+.Nd "who present users are and what they are doing"
+.Sh SYNOPSIS
+.Nm w
+.Op Fl hin
+.Op Fl M Ar core
+.Op Fl N Ar system
+.Op Ar user
+.Sh DESCRIPTION

 The
 The

-.B \-h
-flag suppresses the heading.
+.Nm w
+utility prints a summary of the current activity on the system,
+including what each user is doing.
+The first line displays the current time of day, how long the system has
+been running, the number of users logged into the system, and the load
+averages.
+The load average numbers give the number of jobs in the run queue averaged
+over 1, 5 and 15 minutes.
+.Pp
+The fields output are the user's login name, the name of the terminal the
+user is on, the host from which the user is logged in, the time the user
+logged on, the time since the user last typed anything,
+and the name and arguments of the current process.
+.Pp
+The options are as follows:
+.Bl -tag -width Ds
+.It Fl h
+Suppress the heading.
+.It Fl i
+Output is sorted by idle time.
+.It Fl M
+Extract values associated with the name list from the specified
+core instead of the default
+.Dq /dev/kmem .
+.It Fl N
+Extract the name list from the specified system instead of the
+default
+.Dq /vmunix .
+.It Fl n
+Show network addresses as numbers (normally
+.Nm w
+interprets addresses and attempts to display them symbolically).
+.El
+.Pp
+If a
+.Ar user
+name is specified, the output is restricted to that user.
+.Sh FILES
+.Bl -tag -width /var/run/utmp -compact
+.It Pa /var/run/utmp
+list of users on the system
+.El
+.Sh SEE ALSO
+.Xr who 1 ,
+.Xr finger 1 ,
+.Xr ps 1 ,
+.Xr uptime 1 ,
+.Sh BUGS
+The notion of the
+.Dq current process
+is muddy.
+The current algorithm is ``the highest numbered process on the terminal
+that is not ignoring interrupts, or, if there is none, the highest numbered
+process on the terminal''.
+This fails, for example, in critical sections of programs like the shell
+and editor, or when faulty programs running in the background fork and fail
+to ignore interrupts.
+(In cases where no process can be found,
+.Nm w
+prints
+.Dq \- . )
+.Pp

 The
 The

-.B \-i
-flag causes output to sorted by idle time.
+.Tn CPU
+time is only an estimate, in particular, if someone leaves a background
+process running after logging out, the person currently on that terminal is
+.Dq charged
+with the time.
+.Pp
+Background processes are not shown, even though they account for
+much of the load on the system.
+.Pp
+Sometimes processes, typically those in the background, are printed with
+null or garbaged arguments.
+In these cases, the name of the command is printed in parentheses.
+.Pp
+The 
+.Nm w
+utility does not know about the new conventions for detection of background
+jobs.
+It will sometimes find a background job instead of the right one.
+.Sh COMPATIBILITY

 The
 The

-.B \-flsuw
+.Fl f ,
+.Fl l ,
+.Fl s ,
+and
+.Fl w

 flags are no longer supported.
 flags are no longer supported.

-.PP
-If a
-.I user
-name is included,
-the output will be restricted to that user.
-.SH FILES
-.ta 1i
-/var/run/utmp
-.br
-/dev/kmem
-.br
-/dev/drum
-.SH "SEE ALSO"
-who(1), finger(1), ps(1)
-.SH BUGS
-.PP
-Sometimes processes, typically those in the background, are
-printed with null or garbaged arguments.
-In these cases, the name of the command is printed in parentheses.
+.Sh HISTORY
+The
+.Nm
+command appeared in
+.Ux 3.0 .