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  • Very helpful! However, I don't understand your second example (with the "here" file) at all. I don't think I need to understand it for the answer to my question...but would you mind clarifying it? Commented Nov 16, 2015 at 21:22
  • @Wildcard - the <<INFILE here document is a redirection. it is not evaluated at define time, but only at call time, exactly as evaluations for $@ and $v are delayed. Commented Nov 16, 2015 at 21:33