[BusyBox] Ash *surprises*

[Vladimir N. Oleynik]

David Douthitt wrote:
> 
> "Vladimir N. Oleynik" wrote:
> 
> > > 6. IFS="," ; set -- $FOO ...where FOO="a, b, c, d" acts differently:
> > >    ash:    returns: $1=a $2=b $3=c $4=d
> > >    bb ash: returns: $1=" a" $2=" b" $3=" c" $4=" d"
> > >    ...setting IFS to ", " restores the desired behavior.
> >
> > This not quick correct...
> 
> Now I'm REALLY confused.... I created a test script:
> 
> # cat test.ifs
> 
> show () {
>         for i in "$@" ; do
>                 echo -n "/$i/ "
>         done
>         echo
>         }
> 
> TEST="a, b, c"
> 
> IFS="," ; set -- $TEST
> 
> if [ "$1" = "a" ] && [ "$2" = "b" ] && [ "$3" = "c" ] ; then
>         exit 0
> fi
> 
> show "$@"
> exit 1
> 
> ...now on a Mandrake 8 system that includes bash, ash, and pdksh, all
> return:
> 
> # ./test.ifs
> /a/ / b/ / c/
> 
> With the older non-busybox ash, it also returned that, but had the
> expected (but annoying) trait of displaying the entire file as it went.
> I'd forgotten it did that; if busybox ash doesn't do that it would be
> nice ;-)
> 
> I don't know where this business came from; I KNOW I saw that behavior,
> but it's not there anywhere I look now.  Can't fix it if you can't find
> it - and if everybody else does it that way, maybe it doesn't need
> fixing....

I in it have not understood anything, 
bash, ash-0.2 and busybox ash give identical result on this test.


--w
vodz