I would simply say if you're planning on making changes to the script you probably shouldn't write it in bash. Or to be a little more rigorous, don't use bash i

I would simply say if you're planning on making changes to the script you probably shouldn't write it in bash. Or to be a little more rigorous, don't use bash if you couldn't rewrite the entire script, correctly, from scratch, in an hour. Although I think all of these things are just complicated ways of saying "please seriously reconsider writing it in bash." But I write bash scripts all the time, I just try to keep them as short and simple as possible.