Re: Docco

[Chet Ramey]

On 3/27/24 7:40 AM, Andreas Schwab wrote:

> > The check for whether the first argument is '!' is not performed,
> > because the "$2 is a binary primary" check comes first.  This is how
> > POSIX documents it.
>
> FWIW, ksh parses it the other way round:
>
> $ ksh93 -c '[ ! -a /tmp ]; echo $?; [ . -a /tmp ]; echo $?; [ - -a /tmp ]; echo 
> $?'
> 1
> 0
> ksh93: [: -: unknown operator
> 2

Bash uses the order POSIX specifies. -a and -o are binary primaries when
test gets three arguments.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/