Tuesday, December 27, 2005

w -- show Who is doing What

Summary :

w is part of the procps package. w shows information about the users currently on the machine, and their processes. The header shows, in this order, the current time, Uptime, no. of current users, & load averages for the past 1, 5, and 15 minutes.

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

PCPU -- The time used by the current process, named in the "WHAT".

Examples :
$ w -- Show header, users and processes Information.

$ w bharathi -- Show information about bharathi (user) only.

$ w -h -- Don't show header info.

$ w -f -- Don't show FROM (remote hostname) field.

$ w -s -- Short format. Don't show login, JCPU and PCPU times.

$ w -u -- Ignores the username while figuring out the current process and CPU times of the current tty.
Read : man w

Atlast my exams were over and I am now free for a week. I think I will resume my blogging and try to write new articles.
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