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  • what about pdksh or mksh or oksh? Commented Apr 9, 2015 at 8:22
  • @Stephane; I have no documentation inspected for those two variants of the original ksh. If it's not documented with those tools, I think that you should only (if at all!) rely on the original limits, or in case of single system development (as proposed) to check the supported range. Commented Apr 9, 2015 at 11:24