How to tell if a process exists

[Terry Laskodi]

In article <7733 at amelia.nas.nasa.gov> samlb at pioneer.arc.nasa.gov.UUCP (Sam Bassett RCS) writes:
>In article <1823 at necisa.ho.necisa.oz> boyd at necisa.ho.necisa.oz (Boyd Roberts) writes:
>>Wrong.  RTFM --  kill(pid, 0)
>
>	Hmmm -- must be running Reverse Polish Unix down under, 'cause my
>manual sez: " kill [-sig] processid... ", and I've been doing it that way
>for a looooooooong time.
>
>	What kind of UNIX _are_ you running??


     Well, you're both right. Boyd was describing kill(2); Sam was describing
kill(1).....