> On 03/09/2011 02:54 PM, Chet Ramey wrote:
> >>
> >> For example:
> >>
> >> unset a; declare a="a"; [[ a -lt 3 ]]; echo $?
> >> bash: [[: a: expression recursion level exceeded (error token is "a")
> >> 1
> >>
> >> Shouldn't the return code from this expression be 2, rather than 1?
> >
> > What does it matter? Failure is failure.
>
> Except that [[ explicitly documents that 0 and 1 imply a syntactically
> valid expression, reserving $?==2 for catastrophic failure.
Ummm...no, it doesn't. It promises only to return 0 or 1, or 2 if a regular
expression is invalid. You can try to make a case that the exit status
should change, but not on the basis of how it's currently documented.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU c...@case.edu http://cnswww.cns.cwru.edu/~chet/
