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NAME    [Toc]    [Back]

     w - display users who are logged on and what they are doing

SYNOPSIS    [Toc]    [Back]

     w [-ahi] [-M core] [-N system] [user]

DESCRIPTION    [Toc]    [Back]

     The 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.

     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.

     The options are as follows:

     -a      Attempt to translate network addresses into names.

     -h      Suppress the heading.

     -i      Output is sorted by idle time.

     -M core
             Extract values associated with the  name  list  from
the specified
             core instead of the running kernel.

     -N system
             Extract  the name list from the specified system instead of the
             running kernel.

     If a user name is specified, the  output  is  restricted  to
that user.

FILES    [Toc]    [Back]

     /var/run/utmp  list of users on the system

SEE ALSO    [Toc]    [Back]

     finger(1), ps(1), uptime(1), who(1), utmp(5)

STANDARDS    [Toc]    [Back]

     The -f, -l, -s, -u, and -w flags are no longer supported.

HISTORY    [Toc]    [Back]

     The w command appeared in 3.0BSD.

BUGS    [Toc]    [Back]

     The notion of the ``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
     fork and fail to ignore interrupts.  (In cases where no process can be
     found, w prints ``-''.)

     The 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 ``charged'' with the time.

     Background processes are not shown, even though they account
for much of
     the load on the system.

     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.

     The 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.

OpenBSD      3.6                           June      6,      1993
[ Back ]
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