Thanks for the help. That sounds like a reasonable explanation to me.

In the meantime I've built a construction using PID files.

On script start it saves it's PID to a file
When script ends it removes it's PID file.

When you start the script you check on PID file, if it exists and a proces uses this PID you just exit and wait for the next TASK event.
Not 100% solid, but 99,999999% I guess :)

In reply to Re^2: Can't install Sys::RunAlone by gepebril69
in thread Can't install Sys::RunAlone by gepebril69

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