The highly esteemed merlyn wrote something you could maybe use. I don't know if it will fit your exact problem, but his Highlander script restricts invocation to one instance by using a flocked sentinel file.

While searching with the Super Search, I found out that it dosen't search the Code Catacombs - maybe that could be changed by The Powers That Be :-)

In reply to Re: Locking a script by Corion
in thread Locking a script by Anonymous Monk

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