On Tue, Aug 18, 2015 at 09:00:27AM -0400, Anne Mulhern wrote: > Re-reading the docs, I realize that the information is right there in plain > sight. > If the value is not defined, the variable name, minus the @ signs, is > displayed. > Nice and simple. > > But now, I wonder what happens for fields like _UDEV_DEVLINK, which can be set > 0, 1, or many times. If unset, the variable name minus the @ signs is > displayed. > If set once, the value is substituted. If set twice? One value is used. Which one is pseudorandom.
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