Path: utzoo!utgpu!news-server.csri.toronto.edu!cs.utexas.edu!sdd.hp.com!elroy.jpl.nasa.gov!decwrl!asylum!shark
From: shark@asylum.SF.CA.US (Dylan Rhodes)
Newsgroups: comp.unix.questions
Subject: reading /dev/mem - questions
Message-ID: <13083@asylum.SF.CA.US>
Date: 20 Nov 90 02:07:28 GMT
Reply-To: shark@asylum.sf.ca.us (Dylan Rhodes)
Organization: The Asylum; Belmont, CA
Lines: 21


	Okay, so now that I have root access and everything, I thought
I'd write my own version of 'w' - that is, a program that tells me
who's on, and what they're doing.

	From what I can gather, w and ps get this information from
reading memory, from /dev/mem and/or /dev/kmem.

Questions:

	- Am I on the right track?

	- What *is* the difference between /dev/mem and /dev/kmem?

	- Does anybody have the source code to a 'w' or 'ps' program
	  that I can peruse?


-- 
-= Dylan Rhodes.  decwrl!asylum!herctec!shark or shark@herctec.com =-
-= I really should be doing something a bit more useful right now. =-