Bash Shell Scripting- Simple Shell Script to verify the user is root or not and User is having sudo

The video tutorial explains how to verify if a shell script is run by the root user and how to check if a user has sudo privileges. It covers the implementation of shell scripts using different logic structures, including command chaining and if-else conditions. The tutorial also demonstrates optimizing scripts for efficiency and provides examples of running scripts under different user conditions.

What is the first step before implementing any shell script?

• Understand the required commands

• Check the script for errors

• Write the script directly

• Test the script on a server

Which command is considered better for identifying the user running a shell script?

• echo $USER

• id

• who am I

• pwd

What user ID indicates that the script is being run by the root user?

• 1000

• 500

• 0

• 1

In a shell script, what does a user ID of 0 signify?

• The user is a regular user

• The user is an admin

• The user is a guest

• The user is root

Which operator is used to combine commands in a shell script when checking user status?

• Logical AND

• Logical OR

• Arithmetic

• Bitwise

How can you simplify a shell script to check if the user is root?

• By using a function

• By using a loop

• By using command substitution

• By using multiple lines

What is an alternative to using command chaining operators in a shell script?

• Using a for loop

• Using a switch case

• Using an if-else statement

• Using a while loop

Which command is used to verify if a user has sudo privileges?

• sudo -l

• sudo -v

• sudo -s

• sudo -u

What does a non-zero exit status from 'sudo -v' indicate?

• The user does not have sudo privileges

• The command was not found

• The user is root

• The user has sudo privileges

What command can be used to display the host name in a shell script?

• uname

• whoami

• host

• hostname