sudo for elevated privileges in Linux CLI - Mini Project: Build & Apply

Using sudo for Elevated Privileges

📖 Scenario: You are managing files on a Linux system. Some files need special permissions to be accessed or modified. You will learn how to use sudo to run commands with elevated privileges safely.

🎯 Goal: Learn to use sudo to list a protected directory, create a file in it, and then display the file's contents.

📋 What You'll Learn

Use the sudo command to run commands with elevated privileges

List the contents of a protected directory /root

Create a file called secret.txt inside /root using sudo

Write text into the file using sudo

Display the contents of the file using sudo

💡 Why This Matters

🌍 Real World

System administrators often need to run commands with elevated privileges to manage system files and settings securely.

💼 Career

Knowing how to use <code>sudo</code> is essential for Linux system administrators, DevOps engineers, and anyone managing servers or secure environments.

1

List the contents of the /root directory using sudo

Type the command sudo ls /root to list the contents of the /root directory, which requires elevated privileges.

Linux CLI

# Type the command to list /root directory contents with sudo
# Your code here

Need a hint?

The sudo command lets you run commands as the superuser. Use it before ls /root to see inside the protected directory.

2

Create a file called secret.txt inside /root using sudo

Type the command sudo touch /root/secret.txt to create an empty file named secret.txt inside the /root directory.

Linux CLI

sudo ls /root
# Create an empty file /root/secret.txt using sudo
# Your code here

Need a hint?

Use sudo touch /root/secret.txt to create the file with superuser rights.

3

Write the text Top Secret Data into /root/secret.txt using sudo

Type the command echo 'Top Secret Data' | sudo tee /root/secret.txt to write the text Top Secret Data into the file /root/secret.txt with elevated privileges.

Linux CLI

sudo ls /root
sudo touch /root/secret.txt
# Write 'Top Secret Data' into /root/secret.txt using sudo
# Your code here

Need a hint?

Use echo to send text and sudo tee to write it into the file with superuser rights.

4

Display the contents of /root/secret.txt using sudo

Type the command sudo cat /root/secret.txt to display the contents of the file /root/secret.txt with elevated privileges.

Linux CLI

sudo ls /root
sudo touch /root/secret.txt
echo 'Top Secret Data' | sudo tee /root/secret.txt
# Display the contents of /root/secret.txt using sudo
# Your code here

Need a hint?

Use sudo cat /root/secret.txt to read the file contents with superuser rights.