Originally Posted By: LostShadow
Intresting concept of saying the -u<Number> is a timer. That true guys?

/set [-snzeuN] <%var> [value]

This sets the value of %var to the specified value.

If you specify the -uN switch, %var is unset after N seconds, assuming it is not set again by another script. If you specify a zero for N, the variable is unset when the script finishes.