Sleeping until a file exists

[Paul Sutcliffe Jr.]

dkeisen at Gang-of-Four.Stanford.EDU (Dave Eisen) writes:

>Is there any convenient way for a process (on Xenix 2.3.2 if that's relevant)
>to sleep on the event that a known (spool) directory gets modified by the 
>creation of a file in that directory? 

Do you mean "sleep until the directory gets modified, then do something"
or "do something until the directory gets modified, then sleep?"

- paul

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