The fourth argument to select specifies a timeout. If you call it with blanks for the first three arguments and a value for the fourth it will timeout for that long. For example, you can effect a sleep of 250 milliseconds this way: 
 select(undef, undef, undef, 0.25);

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See the perlfunc bit on select...

In reply to RE: Re: Sleeping with the Enemy by Boogman
in thread Sleeping with the Enemy by doran

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