As a reminder, an array is a type of variable that contains a collection of data organized into a list or sequence.

Arrays are declared using parenthesis () and each element within it is separated by a space character.

array=(element1 ... elementN)

Accessing array elements

When declaring an array, each of its elements (or values) is automatically associated with a unique numerical position called an index, where the first element is stored at index 0, the second at index 1, and so on.

To access and use the value stored at a specific index, you can use this syntax:

${array[index]}

Where:

• array is the name of the variable containing the array.

• index is the index you want to access the value of.

On the other hand, to access all the values of an array at once, separated by a single space character, you can use the special @ index: