I would say: stick to straight command sequences with variables, avoid if/for/while/functions etc. Subshells and pipes only for trivial things. Setting somethi

I would say: stick to straight command sequences with variables, avoid if/for/while/functions etc. Subshells and pipes only for trivial things. Setting something like a 30 char limit will inevitably lead to code-golfing to fit a mess into the 30 char limit. But that becomes harder to automatically check, that's why you should still have good peer reviews based on written standards somewhere.