CODEWITHSUNDEEP
arraysbash
楚狂人
楚狂人

Reputation: 105

how can I index an array by it's name in bash

I have such bash code below, I just want to know how to find an array by it's name:

#!/bin/bash

arr=("object1" "object2")

name="arr"

array=${!name}
echo object0 = ${array[0]}
echo object1 = ${array[1]}

outputs below:

object0 = object1
object1 =

I'm wondering why I cannot index the second element and how can I do that!!!

Upvotes: 3

Views: 120

Answers (1)

anishsane
anishsane

Reputation: 20980

Use this syntax:

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

Your other code is fine.

Or if you have this passed as a variable, name="arr"

You can always use this hack:

name_temp="$name[@]"
array=("${!name_temp}")

Upvotes: 3

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