Here’s an example (subset) of the basic data reduction for a recent GMOS IFU-2 project (Davies, Schirmer & Turner, 2015), using Gemini IRAF and my PyFU scripts. This sequence has also been modified to illustrate the new QE correction in Gemini IRAF 1.13. It’s a bit verbose but I hope some of you will find it useful. These data were from the old GS CCDs.
You can execute this with a cl redirect (even in PyRAF), eg.