How do I check if a pid is running?

[John La Rooy]

What will they think of next? Hiding shutdown under the button marked 'start'?


On 13 May 2002 23:46:45 -0400
Kragen Sitaker <kragen at pobox.com> wrote:

> "Noah" <noah at noah.org> writes:
> > Thanks, this seems to work. In fact the man page for kill
> > says that signal 0 can be used to check the valifity of a pid.
> 
> Of course!  How logical!  Just the other day I was thinking, "How can
> I test whether or not a process exists?"  The very first thing that
> occurred to me was, "I wonder if the man page for kill(2) suggests a
> way to do that?"
> 
> Not.
>