Doug Hellmann: demoshell

Hey, speakers, if you’re doing live demos in a shell, clear the screen after every command to get the prompt back at the top, so folks in the back can see what you’re doing. #speakerlife #protip — genehack @ #scale16x (@genehack) March 11, 2018 Huh? POSIX shells print their output in such a way that it scrolls up and off the top of the screen because they are using tty semantics, which are based on hardware that used to literally print everything on a roll of paper that moved up through the machine and over the top.

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