Input "wrong" answers

[colmac]

Hi, I'm very much a newbie here, and cant figure out how to solve a problem.

I have written a batch program with two segments

• to copy a single database (Lightroom photo database) file on my desktop PC, and rename it with a date/time before moving the original to my laptop

• to reverse the process

The idea being to have dated backup copies on each machine in case of problems, and only ever a single database file between the two machines to ensure that I cannot even open the database file on the wrong device.

I've then managed to get a simple user input to ask which direction the copy is to be made.

All of this works as I want it to, but I cannot figure out how to deal with "wrong answers".

If I ask for input for example "Copy from A-B or B-A" and look for answers "A-B" or "B-A", how do I reject any key input other than those 2 options?

Incidentally, I haven't decided on the actual wording I want to use for input. This is example text only, I feel "A-B" or "B-A" are too similar and liable to confusion (although the program cannot do any of the copy or move if the wrong direction is selected).

Hope someone can help. Thanks

[colmac]

I have solved it using the first script at

https://www.dostips.com/DtTipsMenu.php