Re: nullglob is documented incorrectly

[Chet Ramey]

On 11/5/23 5:15 AM, Emanuele Torre wrote:
> Today, a user in the #bash IRC channel of libera.chat, misunderstood how
> nullglob is supposed to work because is documented incorrectly in the
> man page:
>
>      'nullglob'
>           If set, Bash allows filename patterns which match no files to
>           expand to a null string, rather than themselves.
>
> globs expand to nothing if there are no matches with nullglob set, not
> to the null/empty string.

The null string (NULL) and the empty string ("") are not the same thing.

If nullglob is set, the non-matching pattern expands to the null string,
which is removed by word splitting.

--
``The lyf so short, the craft so long to lerne.'' - Chaucer
                 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU    chet@case.edu    http://tiswww.cwru.edu/~chet/