Just skimmed through the book and noticed several examples where it doesn't use argument quoting. For example the first chapter about variables doing echo $name

Just skimmed through the book and noticed several examples where it doesn't use argument quoting. For example the first chapter about variables doing echo $name. In fact, there is no mention of argument quoting at all. This should be the number one lesson before touching any bash script. Otherwise your scripts will be vulnerable to command injection. I recommend running the whole book through shellcheck. It also recommends wrapping variables with curly braces like ${name}, without explaining why, later on never does so itself throughout the rest of the book. There are a lot of such missing explanations in the whole book. It does make it short and fun to jump straight into the examples but i think it could benefit from some facts and reference material, at least to link to. Anyway, seems like most people here are more interested in arguing over bash vs python than discussing the actual content. A little surprising to see this get so many points.