The easiest way to figure out which variable is undefined is probably to print them out with a delimiter:
print STDOUT "|$a|$b|$c|$d|$e|\n";
If you get
You have an answer. If for some reason you can't simply print out the data, try using the perl debugger
. You can step through your program line by line, and display the value of any variable at any time.
"What do I want? I'm an American. I want more."
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