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Groups > gnu.bash.bug > #16384

Re: hash -l with empty hash table prints to stdout

From Chet Ramey <chet.ramey@case.edu>
Newsgroups gnu.bash.bug
Subject Re: hash -l with empty hash table prints to stdout
Date 2020-06-16 09:30 -0400
Organization ITS, Case Western Reserve University
Message-ID <mailman.1976.1592314236.2541.bug-bash@gnu.org> (permalink)
References <20200615204717.GB28118@jar> <bd77214b-2690-f5de-a814-108e5be8b6f1@case.edu>

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On 6/15/20 4:47 PM, beluro@web.de wrote:

> Bash Version: 5.0
> Patch Level: 3
> Release Status: release
> 
> Description:

> 	`hash -l' is supposed to generate output that is reusable as input
> 	(`help hash' says so, at least). In case the hash table is empty, a
> 	string not re-usable as input is output to stdout. The exit code
> 	indicates success in this case. The string being output is locale-
> 	dependant (and therefore is hard to filter out in a work-around).

It's an interesting question. An empty hash table is not an error
condition, and doesn't result in a non-zero exit status, so output to
stderr is not appropriate. You might want to temporarily enable posix mode,
which suppresses the message.

-- 
``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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Re: hash -l with empty hash table prints to stdout Chet Ramey <chet.ramey@case.edu> - 2020-06-16 09:30 -0400

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