Book Image

Learn C Programming

By : Jeff Szuhay
Book Image

Learn C Programming

By: Jeff Szuhay

Overview of this book

C is a powerful general-purpose programming language that is excellent for beginners to learn. This book will introduce you to computer programming and software development using C. If you're an experienced developer, this book will help you to become familiar with the C programming language. This C programming book takes you through basic programming concepts and shows you how to implement them in C. Throughout the book, you'll create and run programs that make use of one or more C concepts, such as program structure with functions, data types, and conditional statements. You'll also see how to use looping and iteration, arrays, pointers, and strings. As you make progress, you'll cover code documentation, testing and validation methods, basic input/output, and how to write complete programs in C. By the end of the book, you'll have developed basic programming skills in C, that you can apply to other programming languages and will develop a solid foundation for you to advance as a programmer.
Table of Contents (33 chapters)
Section 1: C Fundamentals
Section 2: Complex Data Types
Section 3: Memory Manipulation
Section 4: Input and Output
Section 5: Building Blocks for Larger Programs

Introducing the filesystem

We can think of the filesystem as the interface between the actual storage medium and our program. Despite the underlying complexity and details of any filesystem, its interface is quite simple. C provides a standard set of file manipulation functions that hide the underlying complexities of any filesystem. These complexities are encapsulated in each implementation of the C standard library. From the perspective of a C program, once we can identify a file by name and, optionally, by its location, very little else is of concern to the program.

So, the main aspects of filesystems that we need to care about are how files are named and their location. As much as I would like to say that there is only one way to name and locate files, I cannot say that. Not all filesystems have the same file organization or naming schemes. We will examine filenames briefly.

Each file has two aspects to its name—its location or file path and its filename...