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32 .\" @(#)w.1 8.1 (Berkeley) 6/6/93
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41 .Nd "display who is logged in and what they are doing"
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
56 The load average numbers give the number of jobs in the run queue averaged
57 over 1, 5 and 15 minutes.
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.
64 The options are as follows:
67 dumps out the entire process list on a per controlling
68 tty basis, instead of just the top level process.
72 Output is sorted by idle time.
74 Extract values associated with the name list from the specified
75 core instead of the default
78 Extract the name list from the specified system instead of the
82 Don't attempt to resolve network addresses (normally
84 interprets addresses and attempts to display them as names).
89 names are specified, the output is restricted to those users.
91 .Bl -tag -width /var/run/utmp -compact
93 list of users on the system
102 flags are no longer supported.
117 The current algorithm is ``the highest numbered process on the terminal
118 that is not ignoring interrupts, or, if there is none, the highest numbered
119 process on the terminal''.
120 This fails, for example, in critical sections of programs like the shell
121 and editor, or when faulty programs running in the background fork and fail
122 to ignore interrupts.
123 (In cases where no process can be found,
130 time is only an estimate, in particular, if someone leaves a background
131 process running after logging out, the person currently on that terminal is
135 Background processes are not shown, even though they account for
136 much of the load on the system.
138 Sometimes processes, typically those in the background, are printed with
139 null or garbaged arguments.
140 In these cases, the name of the command is printed in parentheses.
144 utility does not know about the new conventions for detection of background
146 It will sometimes find a background job instead of the right one.