Annotation of src/usr.bin/w/w.1, Revision 1.13
1.13 ! miod 1: .\" $OpenBSD: w.1,v 1.12 2000/11/14 13:36:42 aaron Exp $
1.2 deraadt 2: .\"
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34: .\" @(#)w.1 8.1 (Berkeley) 6/6/93
35: .\"
36: .Dd June 6, 1993
37: .Dt W 1
1.8 aaron 38: .Os
1.1 deraadt 39: .Sh NAME
40: .Nm w
1.6 deraadt 41: .Nd "display users who are logged on and what they are doing"
1.1 deraadt 42: .Sh SYNOPSIS
43: .Nm w
1.4 deraadt 44: .Op Fl hia
1.1 deraadt 45: .Op Fl M Ar core
46: .Op Fl N Ar system
47: .Op Ar user
48: .Sh DESCRIPTION
49: The
1.8 aaron 50: .Nm
1.1 deraadt 51: utility prints a summary of the current activity on the system,
52: including what each user is doing.
53: The first line displays the current time of day, how long the system has
54: been running, the number of users logged into the system, and the load
55: averages.
56: The load average numbers give the number of jobs in the run queue averaged
57: over 1, 5 and 15 minutes.
58: .Pp
59: The fields output are the user's login name, the name of the terminal the
60: user is on, the host from which the user is logged in, the time the user
61: logged on, the time since the user last typed anything,
62: and the name and arguments of the current process.
63: .Pp
64: The options are as follows:
1.11 aaron 65: .Bl -tag -width Ds
1.1 deraadt 66: .It Fl h
67: Suppress the heading.
68: .It Fl i
69: Output is sorted by idle time.
1.9 millert 70: .It Fl M Ar core
1.1 deraadt 71: Extract values associated with the name list from the specified
1.9 millert 72: .Ar core
1.13 ! miod 73: instead of the running kernel.
1.9 millert 74: .It Fl N Ar system
75: Extract the name list from the specified
76: .Ar system
1.13 ! miod 77: instead of the running kernel.
1.4 deraadt 78: .It Fl a
79: Attempt to translate network addresses into names.
1.1 deraadt 80: .El
81: .Pp
82: If a
83: .Ar user
84: name is specified, the output is restricted to that user.
85: .Sh FILES
86: .Bl -tag -width /var/run/utmp -compact
87: .It Pa /var/run/utmp
88: list of users on the system
89: .El
90: .Sh SEE ALSO
91: .Xr finger 1 ,
92: .Xr ps 1 ,
93: .Xr uptime 1 ,
1.7 aaron 94: .Xr who 1
1.10 aaron 95: .Sh COMPATIBILITY
96: The
97: .Fl f ,
98: .Fl l ,
99: .Fl s ,
1.12 aaron 100: .Fl u ,
1.10 aaron 101: and
102: .Fl w
103: flags are no longer supported.
104: .Sh HISTORY
105: The
106: .Nm
107: command appeared in
108: .Bx 3.0 .
1.1 deraadt 109: .Sh BUGS
110: The notion of the
111: .Dq current process
112: is muddy.
1.10 aaron 113: The current algorithm is
114: ``the highest numbered process on the terminal
1.1 deraadt 115: that is not ignoring interrupts, or, if there is none, the highest numbered
1.10 aaron 116: process on the terminal.''
1.1 deraadt 117: This fails, for example, in critical sections of programs like the shell
118: and editor, or when faulty programs running in the background fork and fail
119: to ignore interrupts.
120: (In cases where no process can be found,
1.8 aaron 121: .Nm
1.1 deraadt 122: prints
123: .Dq \- . )
124: .Pp
1.10 aaron 125: The CPU time is only an estimate.
126: In particular, if someone leaves a background
1.1 deraadt 127: process running after logging out, the person currently on that terminal is
128: .Dq charged
129: with the time.
130: .Pp
131: Background processes are not shown, even though they account for
132: much of the load on the system.
133: .Pp
134: Sometimes processes, typically those in the background, are printed with
135: null or garbaged arguments.
136: In these cases, the name of the command is printed in parentheses.
137: .Pp
1.8 aaron 138: The
139: .Nm
1.1 deraadt 140: utility does not know about the new conventions for detection of background
141: jobs.
142: It will sometimes find a background job instead of the right one.
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