Re: Some globstar patterns produce duplicate entries and a null filename

[Chet Ramey]

On 12/1/12 10:41 AM, Ulf Magnusson wrote:
> GNU bash, version 4.2.24(1)-release (i686-pc-linux-gnu)
> 
> Take the following example, assumed to be run in an empty directory:
> 
> $ mkdir a
> $ echo **
> a
> $ echo **/**
>  a a
> $ echo **/**/**
>  a a a
> 
> I would expect the result to be just 'a' in all cases.
> 
> You also get back a null filename, as shown by
> 
> $ for f in **/**/**; do echo "'$f'"; done
> ''
> 'a'
> 'a'
> 'a'

Thanks for the report.  This is definitely a problem.  It will be fixed
in the next version of bash, and may be released as a future patch.  I've
attached a patch for you to test; it fixes the problem for me without
introducing any new errors.

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

globstar-star-star.patch
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