[IshKebab]

I agree, this is a misguided idea. The whole point of not using Bash is that you don't have to use it's terrible design and syntax surely?

[foota]

This only seems to use the good parts of the shell, easy piping and redirection, while dropping the language for logic.

[IshKebab]

It also appears to use some bad parts, e.g. command line switches and unquoted arguments.

[rustshellscript]

Unquoted argument is not an issue here, see some examples here: https://github.com/rust-shell-script/rust_cmd_lib/issues/10