In article <464 at oglvee.UUCP> jr at .UUCP (Jim Rosenberg) writes: >The way that ps works is an utter abortion, IMHO. Yes; fixed in SVR4 (I think). Not with more system calls, though. Read the paper "Processes as Files" in one of the USENIX proceedings. By the way, your guesses about "ps" operation were pretty good.