Yes, maybe the OP could have read a bit more documentation but sometimes this is very confusing for the beginner.
But the op wasn't even aware of CGI.pm's documentation
File upload with CGI is a bit unintuitive at first because, intuitively, you expect to do some actual upload and it takes some time to realise that you are actually just copying a file that is already in some temp folder on local disk by the time you get to use it.
That makes no sense, whats intuition got to do with it? The CGI documentation explains clearly that the uploads end up in a temp directory.
Besides, the OP did show code but wasn't yet in a position to fully understand what it does. I think it is fair to ask for some hints in that case.
Show your code is a strong hint
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