[AlexSW]

Is the scripting language based on bash (etc.)?

One thing I enjoy about fish is that it's not just a shell, but also a modern scripting language alternative to sh/bash. Seems like I would lose this with Murex?

(There's no right or wrong choice for Murex here, just that has to choose one way or another.)

[hnlmorg]

It's a completely new scripting language. It uses C-style braces rather than the more ALGOL-style `if / fi` keywords. However the core syntax of the language should still be familiar to those who use Bash (eg pipes, commands, `$` sigils).

So there is a little more to re-learn than you would with Fish but it shouldn't feel alien to read and write.