Bash Shell Scripting- Associative Arrays

The video tutorial explains the differences between normal (indexed) arrays and associative arrays. Normal arrays use integer indices, while associative arrays use string indices. The tutorial covers how to define and use both types of arrays, highlighting that associative arrays must be declared before use. It also demonstrates how to access values and indices in both array types and discusses the key differences between them.

What is a key characteristic of associative arrays compared to normal arrays?

• They must be declared before use.

• They are faster to access.

• They do not require any declaration.

• They use numbers as indices.

How can you define a normal array with custom index values?

• By using string indices.

• By declaring it with 'declare -A'.

• By assigning values to specific numeric indices.

• By using the 'declare' command with no options.

What is the syntax to declare an associative array?

• declare -a arrayName

• declare -A arrayName

• arrayName = {}

• arrayName = []

In associative arrays, what do the indices represent?

• Strings

• Numbers

• Booleans

• Characters

What is a key difference in displaying values between normal and associative arrays?

• Associative arrays display all values by default.

• Normal arrays display the first value by default.

• Associative arrays display the first value by default.

• Normal arrays display all values by default.

What happens if you try to display an associative array without specifying an index?

• It displays an error message.

• It displays the first value.

• It displays all values.

• It displays nothing.

What type of indices do normal arrays use?

• Strings

• Booleans

• Numbers

• Characters