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author | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
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committer | rgrimes <rgrimes@FreeBSD.org> | 1994-05-27 12:33:43 +0000 |
commit | f9ab90d9d6d02989a075d0f0074496d5b1045e4b (patch) | |
tree | add7e996bac5289cdc55e6935750c352505560a9 /usr.bin/w/w.1 | |
parent | be22b15ae2ff8d7fe06b6e14fddf0c5b444a95da (diff) | |
download | FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.zip FreeBSD-src-f9ab90d9d6d02989a075d0f0074496d5b1045e4b.tar.gz |
BSD 4.4 Lite Usr.bin Sources
Diffstat (limited to 'usr.bin/w/w.1')
-rw-r--r-- | usr.bin/w/w.1 | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/usr.bin/w/w.1 b/usr.bin/w/w.1 new file mode 100644 index 0000000..4e4f5d3 --- /dev/null +++ b/usr.bin/w/w.1 @@ -0,0 +1,141 @@ +.\" Copyright (c) 1980, 1990, 1991, 1993 +.\" The Regents of the University of California. All rights reserved. +.\" +.\" 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. +.\" +.\" 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. +.\" +.\" @(#)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 +.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 +.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 +.Fl f , +.Fl l , +.Fl s , +and +.Fl w +flags are no longer supported. +.Sh HISTORY +The +.Nm +command appeared in +.Ux 3.0 . |