LFCS Exercises

In this lab, we will introduce how to manage the user account in the Linux platform, such as creating new user accounts, modifying the user account management, and deleting a user account.

Move and rename one draft file without changing its content.

In this challenge, you need to use the Linux command to display user and group information.

Create one normal Linux user and grant access to one existing supplementary group.

Locate one exact configuration file and make it private to its owner.

Build practical Linux file skills by navigating paths, creating and editing files, inspecting metadata, working with links, and comparing files and directories.

Learn how to identify commands, read quick usage text, navigate manual pages, and discover commands by topic without memorizing every option.

Learn how Linux paths, directories, files, listings, wildcards, copy, move, removal, and terminal shortcuts fit together in one safe workspace.

Learn to manage Linux users, groups, account locks, ownership, default permissions, sticky directories, and setgid collaboration in a safe practice environment.

In this challenge, we will write a script to determine whether a given file system or mount point is mounted. We will use the df command to check if the file system is mounted or not. If it's mounted, we will print the free space available in it, otherwise, we will print an error message.

Learn the basics of Git version control by creating your first repository, adding files, and making commits. This hands-on lab will guide you through the fundamental Git commands and workflows.

Hi there, welcome to LabEx! In this first lab, you'll learn the classic 'Hello, World!' program in Rust.

In this lab, we will learn how to read a CSV file in Java. CSV files are often used to store data in a simple and easily readable format. We will cover three different approaches to reading CSV files in Java: using BufferedReader, Scanner, and the OpenCSV library.

Mockito is a Java framework used for mocking and unit testing Java applications. In this lab, we will learn about spies in Mockito. A Spy is like a partial mock, which will track the interactions with the object like a mock. Additionally, it allows us to call all the normal methods of the object. We will use the Mockito.spy() method and annotations to create spies and demonstrate how to stub a Spy.

In this lab, we will learn how to write a C program to find the area and circumference of a circle. We will use the formula area = PI radius radius and circumference = 2 PI radius. We will be using the stdio.h library to read and write data.