Hi Marshall,
Thank you very much for taking your time to reply in such depth - that's highly appreciated.
The problem I'm solving is not a homework assignment but concerns a task at my job that I wish to automate. The AWKish requirement was my own idea bit I see that I need to bend over backwards to fulfill the requirement and the code comes out clumsy and not as elegant as your suggestion.
In your code and comments I see several good points to observe in my future coding. I shall rewrite my script along the lines suggested by you.
Thank you for sharing your expertise, experience and tips on good coding style.
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