One Day One GNU/Linux Command
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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
HTH :)
--
Bharathi S
