zlacker

That's what I mean. A new shell would need to blow me away with some amazing must have interactive feature. The scripting part is, at least for me, not really relevant. If I can install software on the target I will install a proper language and if not then it will be bash or sh anyways, even though they properly suck.

>>BadBad+(OP)
The "killer app" is that it's easy to string together multiple commands and have them work more reliably than shells that rely on plaintext. In other words, it's something in-between running individual commands and writing full scripts. I've not used Nushell before, but I'm very familiar with PowerShell which is similar, and it's ridiculously easy to manipulate and explore your file system with confidence that you don't have to rely on hacky and hard to read regex and similar suboptimal solutions.