Both of the above posts cover how to split the information up, but i assume you can do that (per the split in your post) ... i checked through the debugger, and, as suspected, there is not internal variable ... sorry, but $0 is all she wrote.

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Thus spake the Master Programmer:
"When you have learned to snatch the error code from the trap frame, it will be time for you to leave."
-- The Tao of Programming