Access Elements of Array using Index in Bash

Access Elements of Array using Index

To access elements of array using index in Bash, use index notation on the array variable as array[index].

The syntax to access element of an array at specific index is

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arrayname[index]

Index starts from zero and increments in steps of one for the subsequent elements in the array.

This notation is an expression, so while accessing the element, enclose the expression in ${} as disambiguation mechanism.

In the following script, we initialise an array arr with three string values and access the elements of this array using index.

Example.sh

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arr=("apple" "banana" "cherry")
echo ${arr[0]}
echo ${arr[1]}
echo ${arr[2]}

Output

apple
banana
cherry

In this Bash Tutorial, we have learnt how to access elements of an array using index in Bash shell.