On: What was the point of [ “x$var” = “xval” ]?

[hnlmorg]

It's worth adding mine to the list too:

[4]: https://github.com/lmorg/murex

Superficially it's quite similar to elvish (purely by coincidence) but it's aimed around local machine use (eg by developers and devops engineers) so is as much inspired by IDEs as it is by shells.