I believe that the problem here is that you won't be permitted to open a file for reading if it doesn't exist. Try changing opening your output file to the following (>> for append and > for overwrite): 
open (OUT, ">>$inputfile.out") or die "cannot open file: $!\n";

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Mick

In reply to Re: Creating file at run time by mrmick
in thread Creating file at run time by Anonymous Monk

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