Observation: It's not quite the simplest possible vanilla bare-bones 'tee' that could be written in Go -- but it is reasonably simple (the source code is unders

Observation: It's not quite the simplest possible vanilla bare-bones 'tee' that could be written in Go -- but it is reasonably simple (the source code is understandable with respect to other larger Go source code bases) comparatively! Related: https://en.wikipedia.org/wiki/Tee_(command) https://en.wikipedia.org/wiki/Tee_(command)