Vincent Lefevre <vinc...@vinc17.net> wrote:
> With GNU Coreutils 9.4, both "test -a -a -a" and "test -o -o -o" fail:
>
> $ export POSIXLY_CORRECT=1
> $ /usr/bin/test -a -a -a ; echo $?
> /usr/bin/test: ‘-a’: unary operator expected
> 2
> $ /usr/bin/test -o -o -o ; echo $?
> /usr/bin/test: ‘-o’: unary operator expected
> 2
>
> According to POSIX, they should return 0.
>
> https://pubs.opengroup.org/onlinepubs/9699919799/utilities/test.html
> says for 3 arguments:
>
> If $2 is a binary primary, perform the binary test of $1 and $3.
>
> Here, $2 is -a and -o respectively, which are binary primaries.
> And both $1 and $3 are non-null strings.
Just adding here that POSIX.1-2024 removed the -a and -o operators [1]:
Austin Group Defect 1330 is applied, removing the obsolescent (and
optional) -a and -o binary primaries, and '(' and ')' operators.
So I don't think we should spend much time worrying about it. That is my
excuse at least.
Will leave this bug report open though.
[1] https://pubs.opengroup.org/onlinepubs/9799919799/utilities/test.html
