I can second the shellcheck recommendation. Shellcheck makes great recommendations, and every suggestion has a corresponding code you can google to get to a det

I can second the shellcheck recommendation. Shellcheck makes great recommendations, and every suggestion has a corresponding code you can google to get to a detailed explanation of why that is considered a warning or error. Hell, even if I just considered the times I forgot to put quotes around a variable and got warned by shellcheck I would be happy that I use it.