Bash Shell Scripting- Scope of the Variables (Global and Local Variables), Returning a variable value

Bash Shell Scripting- Scope of the Variables (Global and Local Variables), Returning a variable value

Assessment

Interactive Video

Information Technology (IT), Architecture

University

Practice Problem

Hard

Created by

Wayground Content

FREE Resource

The video tutorial covers the concepts of variable scope in shell scripts, focusing on global and local variables. It explains how to define and call functions, and the differences between global and local variables. The tutorial also demonstrates how to modify variable scope using the local keyword and how to return values from functions using ECHO and return commands.

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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the default scope of a variable in a shell script?

Protected

Global

Local

Private

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which line is necessary to start a shell script?

Shebang line

Function definition

Echo command

Variable declaration

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How can you execute a function in a shell script?

By using a shebang line

By declaring it as global

By calling its name

By defining it

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens to a global variable when modified inside a function?

It is deleted

It gets updated globally

It becomes local

It remains unchanged

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What keyword is used to define a local variable in a function?

Private

Local

Static

Global

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Where can a local variable be accessed?

Only inside the function

In other functions

Anywhere in the script

In the main script

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which command is recommended for returning a variable value from a function?

Return

Exit

Echo

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