This is absolutely perverse and messed up... but I sort of love it. Amazing, and fun, piece of work. Ivan, I think you may be the sedmaster. I haven't had to u

This is absolutely perverse and messed up... but I sort of love it. Amazing, and fun, piece of work. Ivan, I think you may be the sedmaster. I haven't had to use it seriously in more than 20 years but back then I did remember use it for modifying install scripts on the fly for an application installer on Solaris. There was a fair amount of headscratching involved. Practice makes perfect, I'm sure, but this project must have taken ages. Thank you for sharing!