Variable transformation does not work with arrays about sh HOT 2 OPEN

For the unaware (such as myself): The ${parameter@operator} is not in my local bash man page, I had to go looking for it. It came out in bash 4.4, circa late 2015. See https://www.gnu.org/software/bash/manual/html_node/Shell-Parameter-Expansion.html and search for ${parameter@operator}.

The @Q operator:

The expansion is a string that is the value of parameter quoted in a format that can be reused as input.

There are 9 other operators defined in the GNU Bash documentation. This package handles only @Q and @E, everything else panics. See

Edit: And, obviously, it doesn't work for arrays, regardless.

from sh.

Ah, it seems you are right about only Q and E being supported. I remember trying @K as well, but it seems it did not error because I tried it for arrays. The following "succeeds" in the sense that it does not error, but the output is still wrong (which makes sense if expansion operators are just ignored for arrays)

$ gosh -c 'var=("some" "with space"); echo "${var[@]@K}"'
some with space

from sh.