A good example of the difference in precedence of or and || is in the common perl idiom of 
open FILE, "file" or die;

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it is not the same as 
open FILE, "file" || die;

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since || has a higher precedence than open the "file" || die gets evaluated before the open. So it will not die even if the open fails. or has a lower precedence than open so the open gets evaluated first in the first example. To have the same effect using || you have to use 
open(FILE, "file") || die;

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--

flounder

In reply to Re^2: To || or not to or and why. by flounder99
in thread To || or not to or and why. by krisahoch

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