Phillip Wood wrote:
> On 13/06/2021 14:28, Ævar Arnfjörð Bjarmason wrote:
> >
> > On Sat, Jun 12 2021, Đoàn Trần Công Danh wrote:
> >
> >> + { test "x$1" = "x!" && test $# = 1 ; }
> >> [...]
> >> + if test "x$1" = "x!"
> >
> > We don't use this test idiom in other places, it's OK to just use "$1" =
> > "!". I think we're past whatever portability concern made that popular
> > in some older shell code in the wild.
>
> Slightly off topic but if anyone is interested in the history of this
> test idiom and why it is no longer needed there is a good article at
> https://www.vidarholen.net/contents/blog/?p=1035
Very nice! I often wondered why people did that.
--
Felipe Contreras
