Making sure script only runs once instance at a time.

[Tim Williams]

On 29 Sep 2006 10:04:15 -0700, Paul Rubin
<"http://phr.cx"@nospam.invalid> wrote:
> "Tim Williams" <tim at tdw.net> writes:
> > That's the same kind of principle as my posted snippet,  it doesn't
> > rely on the file's presence or absence as such.  It only cares when
> > the file exists *and* is held open by another process.    When the
> > process exits,  the lock ends without needing to clean up.
> >
> > It works on Windows, but that doesn't help the OP :)
>
> Huh?  Fcntl is on linux.

No, my snippet does  LOL :)