Re: Ensuring only one copy of a perl script is running at a time

[tokpela]

On Windows, I used Win32::Mutex to ensure that a process was not already running.

However, I seem to remember that this only worked on a per user basis and did not prevent another user from running the same script. But since I was running using a scheduled task, it worked well.

[Anonymous Monk]

What about?

$cmd = 'ps -eaf | grep -c "\< '."$0".'\>"'; 
chomp($instances = `$cmd`); 
if($instances > 1) exit;