On Mon, Jul 8, 2024 at 3:35 AM Georg Pfuetzenreuter [off-list ref] wrote:

https://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html states

"The XSI extensions specifying the -a and -o binary primaries and the
'(' and ')' operators have been marked obsolescent."

suggesting "&&" being preferred over "-a".

That's annoying, I wonder why they did that. It does make
the "test" parser a bit tricky, especially with empty expansions,
but empty expansions are already a problem requiring careful
quoting in the first place...

Chris