Re: [Help-bash] Brace expansion with empty args

[Roman Rakus]

On 06/14/13 14:54, Greg Wooledge wrote:
> On Fri, Jun 14, 2013 at 03:51:37PM +0300, Pierre Gaston wrote:
> >  From the previous discussions about {} on bug-bash, brace expansion is
> > a textual thing.
> > So I guess it's just that ''{,} result in the text '' '', while {,}
> > results in not text, or perhaps in a whitespace
> It produces a single null string:
>
> imadev:~$ printf '<%s> ' {,} ; echo
> <>
Which is erased:
$ printf '<%s> ' {,} after; echo
<after>
$ printf '<%s> ' ; echo
<>
$ printf '<%s> ' before {,} after; echo
<before> <after>

RR