Allowing only one instance of a script?

[Aahz]

In article <11bljh588m0r89c at corp.supernews.com>,
Grant Edwards  <grante at visi.com> wrote:
>
>Both open() and link() are atomic operations, so there's no
>race condition.

...unless you're running under NFS.
-- 
Aahz (aahz at pythoncraft.com)           <*>         http://www.pythoncraft.com/

f u cn rd ths, u cn gt a gd jb n nx prgrmmng.