w - Prints a summary of current system activity
w [-fm] [-h] [-l | -s] [user]
w -u [-m]
The w command prints a summary of the current activity on
the system, followed by information about users on the
The system summary shows the current time, the amount of
time since the system was last started, the number of
users logged in to the system, and the load averages. The
load average numbers give the number of jobs in the run
queue for the last 5 seconds, the last 30 seconds, and the
last 60 seconds. The Mach factor is a variant of the load
average, given for the same intervals; the closer its
value to 0 (zero), the higher the load.
The information displayed for each user includes: Who is
logged in. What each user is doing. The abbreviated name
of the tty or pty each user is on. The location, such as
a remote site, from which each user logged in. The time
of day each user logged in. The number of minutes since
each user last entered data at the keyboard. The name and
arguments of the current process. The system unit time
used by the current process (PCPU). The system unit time
used by all the processes and their children that are
associated with the user's tty (JCPU).
If you specify a user, output is restricted to that user.
Suppresses the from field. Suppresses the system summary
and the heading line. Prints information in the long format.
This is the default. Prints the Mach factor instead
of the load average in the system summary. Prints the
information in short format. In the short form, the login
time, system unit time, and command arguments are omitted.
Prints the system summary only. Using this option is
equivalent to entering the uptime command.
Contains user and accounting information.
Commands: finger(1), ps(1), uptime(1), users(1), who(1)
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