Bash Shell Scripting- Passing Parameters to a Function

The video tutorial explains how to create a simple shell script with a function for addition. It highlights the limitations of using fixed variables and demonstrates how to pass parameters to functions using command line arguments. The tutorial also covers the concept of dollar variables and how they are used to assign values within functions.

What is the primary purpose of the addition function in the shell script?

• To subtract two numbers

• To multiply two numbers

• To add two numbers

• To divide two numbers

Why can't the addition function be used for variables P and Q?

• Because P and Q are not numbers

• Because the function is designed to work with fixed variables X and Y

• Because P and Q are not defined

• Because the function only works with strings

What is the solution to use the addition function with different variables?

• Use a different programming language

• Redefine the function for each variable

• Use global variables

• Pass parameters to the function

How are command line arguments accessed within a function?

• Using the $ symbol followed by the argument number

• Using the # symbol followed by the argument number

• Using the @ symbol followed by the argument number

• Using the variable names directly

What happens if you pass direct values instead of variables to a function?

• The function will not execute

• The function will use the direct values as arguments

• The function will throw an error

• The function will ignore the values

What is the significance of using $1, $2, etc., in a function?

• They are used to comment out lines in the script

• They are used to define new variables

• They are used to access command line arguments passed to the function

• They are used to denote the order of execution

What does $0 represent in a shell script?

• The last argument passed to the script

• The current working directory

• The name of the shell script

• The first argument passed to the script