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

[Roman Rakus]

On 06/14/13 06:20, Masaki Saito wrote:
> Thanks Pierre, Greg.
>
> I had thought that `nothing' is same as null string.
> But manual says that preamble and postscript are optional.
> So I thought that like bellow.
> {,c} is a same format as a{,c} except preamble.
> So these generate two strings.
> a{,c} generates 'a', 'IFS' and 'ac',
> {,c} generates '', 'IFS' and 'c'.
> That is incorrect...
> What's different about nothing and null string?
>
> Sorry, my name is garbled.
> Masaki
In fact it generates null string, but word splitting will erase it. (at 
least I believe in it)

RR