Provided by: procps_3.2.8-11ubuntu6_amd64 bug


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


       w [-husfVo] [user]


       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 running,  how
       many users are currently logged on, and the system load averages for the past 1, 5, and 15

       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.


       -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  distribution
            maintainer may have compiled a version in which the from field is shown by default.

       -V   Display version information.

       -o   Old style output. Prints blank space for idle times less than one minute.

       user Show information about the specified user only.


              Override the default width of the username column. Defaults to 8.

              Override the default width of the from column. Defaults to 16.


              information about who is currently logged on

       /proc  process information


       The output for Idle, JCPU and PCPU times vaires depending on if you use the -o (old style)
       option or not. These formats can be confusing if you switch  between  the  old  style  and
       standard.   In  the following paragraphs days are DD, hours HH, minutes MM, seconds SS and
       100ths of seconds CC.

       The standard format is DDdays, HH:MMm, MM:SS or SS.CC if the  times  are  greater  than  2
       days, 1hour, or 1 minute respectively.

       For  the -o option, the output will be either  DDdays, HH:MM, MM:SSm or blank if the times
       are greater than 2 days, 1 hour or 1 minute respectively.


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


       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 <>

                                         5 October 2009                                      W(1)