From: Xavier Noria <fxn@...>
Date: 2008-05-26T02:43:19+09:00
Subject: Re: Ensuring only one instance of a script is running

On Wed, May 21, 2008 at 7:08 AM, Joel VanderWerf
<vjoel@path.berkeley.edu> wrote:
> Daniel Berger wrote:
>>
>> DATA.flock(File::LOCK_EX)
>
> Google seems to think it's original, FWIW.

Locking DATA has been used in Perl for a long time.