Return to w.1 CVS log

Up to [local] / src / usr.bin / w

Annotation of src/usr.bin/w/w.1, Revision 1.14

1.14    ! millert     1: .\"    $OpenBSD: w.1,v 1.13 2001/11/09 00:56:24 miod Exp $
1.2       deraadt     2: .\"
1.1       deraadt     3: .\" Copyright (c) 1980, 1990, 1991, 1993
                      4: .\"    The Regents of the University of California.  All rights reserved.
                      5: .\"
                      6: .\" Redistribution and use in source and binary forms, with or without
                      7: .\" modification, are permitted provided that the following conditions
                      8: .\" are met:
                      9: .\" 1. Redistributions of source code must retain the above copyright
                     10: .\"    notice, this list of conditions and the following disclaimer.
                     11: .\" 2. Redistributions in binary form must reproduce the above copyright
                     12: .\"    notice, this list of conditions and the following disclaimer in the
                     13: .\"    documentation and/or other materials provided with the distribution.
1.14    ! millert    14: .\" 3. Neither the name of the University nor the names of its contributors
1.1       deraadt    15: .\"    may be used to endorse or promote products derived from this software
                     16: .\"    without specific prior written permission.
                     17: .\"
                     18: .\" THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
                     19: .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
                     20: .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
                     21: .\" ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
                     22: .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
                     23: .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
                     24: .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
                     25: .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
                     26: .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
                     27: .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
                     28: .\" SUCH DAMAGE.
                     29: .\"
                     30: .\"     @(#)w.1        8.1 (Berkeley) 6/6/93
                     31: .\"
                     32: .Dd June 6, 1993
                     33: .Dt W 1
1.8       aaron      34: .Os
1.1       deraadt    35: .Sh NAME
                     36: .Nm w
1.6       deraadt    37: .Nd "display users who are logged on and what they are doing"
1.1       deraadt    38: .Sh SYNOPSIS
                     39: .Nm w
1.4       deraadt    40: .Op Fl hia
1.1       deraadt    41: .Op Fl M Ar core
                     42: .Op Fl N Ar system
                     43: .Op Ar user
                     44: .Sh DESCRIPTION
                     45: The
1.8       aaron      46: .Nm
1.1       deraadt    47: utility prints a summary of the current activity on the system,
                     48: including what each user is doing.
                     49: The first line displays the current time of day, how long the system has
                     50: been running, the number of users logged into the system, and the load
                     51: averages.
                     52: The load average numbers give the number of jobs in the run queue averaged
                     53: over 1, 5 and 15 minutes.
                     54: .Pp
                     55: The fields output are the user's login name, the name of the terminal the
                     56: user is on, the host from which the user is logged in, the time the user
                     57: logged on, the time since the user last typed anything,
                     58: and the name and arguments of the current process.
                     59: .Pp
                     60: The options are as follows:
1.11      aaron      61: .Bl -tag -width Ds
1.1       deraadt    62: .It Fl h
                     63: Suppress the heading.
                     64: .It Fl i
                     65: Output is sorted by idle time.
1.9       millert    66: .It Fl M Ar core
1.1       deraadt    67: Extract values associated with the name list from the specified
1.9       millert    68: .Ar core
1.13      miod       69: instead of the running kernel.
1.9       millert    70: .It Fl N Ar system
                     71: Extract the name list from the specified
                     72: .Ar system
1.13      miod       73: instead of the running kernel.
1.4       deraadt    74: .It Fl a
                     75: Attempt to translate network addresses into names.
1.1       deraadt    76: .El
                     77: .Pp
                     78: If a
                     79: .Ar user
                     80: name is specified, the output is restricted to that user.
                     81: .Sh FILES
                     82: .Bl -tag -width /var/run/utmp -compact
                     83: .It Pa /var/run/utmp
                     84: list of users on the system
                     85: .El
                     86: .Sh SEE ALSO
                     87: .Xr finger 1 ,
                     88: .Xr ps 1 ,
                     89: .Xr uptime 1 ,
1.7       aaron      90: .Xr who 1
1.10      aaron      91: .Sh COMPATIBILITY
                     92: The
                     93: .Fl f ,
                     94: .Fl l ,
                     95: .Fl s ,
1.12      aaron      96: .Fl u ,
1.10      aaron      97: and
                     98: .Fl w
                     99: flags are no longer supported.
                    100: .Sh HISTORY
                    101: The
                    102: .Nm
                    103: command appeared in
                    104: .Bx 3.0 .
1.1       deraadt   105: .Sh BUGS
                    106: The notion of the
                    107: .Dq current process
                    108: is muddy.
1.10      aaron     109: The current algorithm is
                    110: ``the highest numbered process on the terminal
1.1       deraadt   111: that is not ignoring interrupts, or, if there is none, the highest numbered
1.10      aaron     112: process on the terminal.''
1.1       deraadt   113: This fails, for example, in critical sections of programs like the shell
                    114: and editor, or when faulty programs running in the background fork and fail
                    115: to ignore interrupts.
                    116: (In cases where no process can be found,
1.8       aaron     117: .Nm
1.1       deraadt   118: prints
                    119: .Dq \- . )
                    120: .Pp
1.10      aaron     121: The CPU time is only an estimate.
                    122: In particular, if someone leaves a background
1.1       deraadt   123: process running after logging out, the person currently on that terminal is
                    124: .Dq charged
                    125: with the time.
                    126: .Pp
                    127: Background processes are not shown, even though they account for
                    128: much of the load on the system.
                    129: .Pp
                    130: Sometimes processes, typically those in the background, are printed with
                    131: null or garbaged arguments.
                    132: In these cases, the name of the command is printed in parentheses.
                    133: .Pp
1.8       aaron     134: The
                    135: .Nm
1.1       deraadt   136: utility does not know about the new conventions for detection of background
                    137: jobs.
                    138: It will sometimes find a background job instead of the right one.