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Groups > gnu.bash.bug > #15545 > unrolled thread

Re: Parameter expansion resulting empty treated as if it's not empty

Started byChet Ramey <chet.ramey@case.edu>
First post2019-10-30 18:45 -0400
Last post2019-10-30 18:45 -0400
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  Re: Parameter expansion resulting empty treated as if it's not empty Chet Ramey <chet.ramey@case.edu> - 2019-10-30 18:45 -0400

#15545 — Re: Parameter expansion resulting empty treated as if it's not empty

FromChet Ramey <chet.ramey@case.edu>
Date2019-10-30 18:45 -0400
SubjectRe: Parameter expansion resulting empty treated as if it's not empty
Message-ID<mailman.37.1572475531.13325.bug-bash@gnu.org>
On 10/30/19 7:12 AM, Oğuz wrote:
> Since
> 
> bash -c '${1##*""}' _ foo
> 
> prints an empty line, I was expecting
> 
> bash -c '${1##*"${1##*}"}' _ foo
> 
> to print an empty line too, but instead it prints foo.

Thanks for the report. The shell doesn't handle the second quoted string
correctly. I'll fix it for the next devel branch push.

Chet

-- 
``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/

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