How to create an array from the keys of an associative array?

Question

I have an associative array:

declare -A hash

hash[one]=1
hash[two]=2
hash[third item]=3

How can I create an indexed array from the keys of this associative array?

codeforester · Accepted Answer · 2019-06-29 07:38:00Z

3

To make an array with the keys from an associative array:

arr=("${!hash[@]}")

To make an array with the values:

arr=("${hash[@]}")

Note that you need the double quotes to prevent the shell from word splitting.

answered Jun 29, 2019 at 7:38

codeforester

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