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Scripting: wait vs. sleep

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When coordinating parallelized processes, wait is the essential command.
The wait command man page simply states that it pauses script execution until a specified process ID completes. The man page for the sleep command is a single line stating that it causes a script to pause for specified period of time.

How do you decide which is appropriate for the script at hand? In some cases it won't make any difference to the successful completion of the script. Other times it can be the difference between success and total failure to produce the expected results.
 read more | mail this link | score:8214 | -Ray, March 29, 2005
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