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| From | Charles Daffern <seejay.11@gmail.com> |
| Newsgroups | gnu.bash.bug |
| Subject | Re: Is this right? test -v $hash{defined_value} == false? |
| Date | Mon, 13 Jul 2015 07:04:00 +0100 |
| Lines | 48 |
| Approved | bug-bash@gnu.org |
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On 13/07/15 04:58, Linda Walsh wrote:
>> [[ -v hash[defined_value] ]] || echo fail
> fail
This one worked for me, both bare and in quotes.
>> echo $BASH_VERSION
> 4.2.45(1)-release
I'm on 4.3.39(1)-release
> This seems more messy and isn't -v supposed
> to help clean up such things?
>> [[ ${hash[defined_value]:-""} ]] || echo fail #it passes
>> [[ ${hash[defined_value1]:-""} ]] || echo fail
> fail
In non-bash shells I will usually use [ -n "${var+x}" ], because it
distinguishes between empty and unset variables.
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Re: Is this right? test -v $hash{defined_value} == false? Charles Daffern <seejay.11@gmail.com> - 2015-07-13 07:04 +0100
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