man--w

W(1)                          Linux User’s Manual                         W(1)

NAME
       w - Show who is logged on and what they are doing.

SYNOPSIS
       w - [husfV] [user]

DESCRIPTION
       w  displays information about the users currently on the machine, and their processes.
       The header shows, in this order,  the current time, how long the system has been  run-
       ning,  how  many  users  are currently logged on, and the system load averages for the
       past 1, 5, and 15 minutes.

       The following entries are displayed for each user:  login  name,  the  tty  name,  the
       remote  host, login time, idle time, JCPU, PCPU, and the command line of their current
       process.

       The JCPU time is the time used by all processes attached to  the  tty.   It  does  not
       include past background jobs, but does include currently running background jobs.

       The PCPU time is the time used by the current process, named in the "what" field.

COMMAND-LINE OPTIONS
       -h   Don’t print the header.

       -u   Ignores  the  username  while figuring out the current process and cpu times.  To
            demonstrate this, do a "su" and do a "w" and a "w -u".

       -s   Use the short format.  Don’t print the login time, JCPU or PCPU times.

       -f   Toggle printing the from (remote hostname) field.  The default as released is for
            the from field to not be printed, although your system administrator or distribu-
            tion maintainer may have compiled a version in which the from field is  shown  by
            default.

       -V   Display version information.

       user Show information about the specified user only.

FILES
       /var/run/utmp
              information about who is currently logged on

       /proc  process information

SEE ALSO
       free(1), ps(1), top(1), uptime(1), utmp(5), who(1)

AUTHORS
       w  was  re-written  almost  entirely  by  Charles Blake, based on the version by Larry
       Greenfield  and Michael K. Johnson  .

       Please send bug reports to 

                                  8 Dec 1993                              W(1)
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