For anything complex it is better to use a real language, not bash. If you are a Scala developer then Scala is a pretty good choice. However lots of folks use G

For anything complex it is better to use a real language, not bash. If you are a Scala developer then Scala is a pretty good choice. However lots of folks use Groovy or Python which have the advantage that a wider group of people can learn how to use them. The JS everywhere crowd is rather narrowminded and don't seem to be aware that they are reinventing a wheel that others have already done better. But if you spend most of your day writing JS and you find yourself needing to write complex bash scripts, give your head a shake and use JS instead. It is better to use a real programming language where you have test frameworks, build tools and so on.