It's hard to know
exactly what you mean by this but here may be the solution.
The one thing which we very often use when we need a unique identifer is the current date and time. That number is
ALWAYS increasing, and never repeats.
There are special commands in eValid, called
Reserved Variables, that can be used to emit date and time information into a script at playback time.
Please see the
Reserved Variables Manual Page for the complete details.
A string in your script like this:
$_Year$_Month$_Date$_Hour$_Minute$_Second will be unique to the nearest second. No matter what.
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