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 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
The PCPU time is the time used by the current process, named in the "what"
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".
Use the short format. Dont print the login time, JCPU or PCPU times.
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.
Display help text and exit.
Display version information.
Old style output. Prints blank space for idle times less than one minute.