by MartinMan » Thu May 16, 2013 5:23 pm
Hello Padawanlotto,
It is good for a few things.
If you have more than one filter system, you can find tickets that they agree on.
You can find the tickets from several different wheeling systems that are in each.
If you have a good base filter system that has all of the numbers in it a good bit of the time, you can find the tickets from a wheeling system that are also in your base system.
If you use more than one lotto program, you can find the tickets that they agree on. etc.
For these things I use the keep switch.
Just append one file to another and then use keep.
And as Moti said, it works to remove duplicates from random files. also.