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How to test if a variable exists and is a hash?
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From: |
Peng Yu |
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Subject: |
How to test if a variable exists and is a hash? |
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Date: |
Sat, 11 Jul 2020 10:43:28 -0500 |
$ declare -A x=([a]=10); [[ -v x ]]; echo $?
1
-v can not test if a hash is declared.
`declare -p x 2> /dev/null` can not tell whether it is a hash or a variable.
What is the best way to check if a variable exists and is a hash? Thanks.
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Regards,
Peng
- How to test if a variable exists and is a hash?,
Peng Yu <=