file locking is os dependend, and doesn't always go right.
I'd suggest your script itself handles the locking, eg:
1. check the lock-file when opening the file
1. write a lock-file when opening the file
2. check the lock-file before opening the file
Ah, ... same as described
here
"We all agree on the necessity of compromise. We just can't agree on when it's necessary to compromise." - Larry Wall.