Discussed here: https://news.ycombinator.com/item?id=30409100 https://news.ycombinator.com/item?id=30409100 I've memorised most of the 1st-page instructions -

Discussed here: https://news.ycombinator.com/item?id=30409100 https://news.ycombinator.com/item?id=30409100 I've memorised most of the 1st-page instructions - in octal - and it's easier than it sounds.