I didn't have the foresight to note who it was, or even what the topic was, but I do remember the drift of the topic. Somebody had asked a question that dealt with iterating over an array. One of the first posts suggested using $# as the upper limit of the for. A later post suggested using $[ as the lower limit, since there was no guarantee that the array began at index 0. I'll keep searching. It would be good for me to find again, since the details of that topic may be completely different than what I'm concerned about.