Both tools look useful (although I lean toward Amber's ECMAscript syntax). I liked this comment from batsh:
> Both Bash and Batch are messy to read and tricky to write due to historical reasons. You have to spend a lot of time learning either of them and write platform-dependent code for each operating system. I have wasted lots of time in my life struggling with bizarre syntaxes and unreasonable behaviors of them, and do not want to waste any more.
https://github.com/batsh-dev-team/Batsh