Bash Shell Scripting - Functions - The Basics

This video introduces the concept of functions in bash scripting, emphasizing their importance for creating reusable code. It covers setting up a script, declaring functions in two different ways, and using them. The video also highlights the importance of declaring functions before using them to avoid errors.

Why are functions introduced early in the Bash scripting course?

• To make scripts more complex

• To help with understanding loops

• To provide reusable code

• To avoid using variables

What is the first step in creating a function in Bash?

• Using a loop

• Declaring the function

• Writing a conditional statement

• Setting file permissions

What does the 'function' keyword do in Bash scripting?

• It declares a function

• It starts a loop

• It sets a variable

• It ends a script

What happens when a function is read into memory in Bash?

• It executes immediately

• It waits for a trigger to execute

• It deletes the script

• It displays an error

What is the consequence of using a function name before its declaration in Bash?

• The function is ignored

• The function executes twice

• The script runs successfully

• An error occurs

How can functions be declared without using the 'function' keyword?

• By using curly braces

• By using parentheses

• By using angle brackets

• By using square brackets

What must be done before using a function in a Bash script?

• Declare the function

• Set the script to read-only

• Create a loop

• Define a variable