Working with Files in C
This course will teach you how to effectively work with files in the C programming language.
What you'll learn
At some stage in your career, you may have to deal with legacy C applications that run against your existing files. In this course, Working with Files in C, you’ll learn how to perform file I/O. First, you’ll explore how to open and read a file. Next, you’ll discover how to create and write to a file. Finally, you’ll learn about file security levels and authorization. When you’re finished with this course, you’ll have the skills and knowledge of file I/O needed to work with files in the C programming language.
Table of contents
Before beginning the course, you should be familiar with running and debugging C applications in Visual Studio Code.
Being a middle-level language, C reduces the gap between the low-level and high-level languages. It can be used for writing operating systems as well as doing application level programming.
It's difficult to know how long in terms of elapsed time it will take to get a good working knowledge. With intensive training the language can be learned in about 4.5 days. If you are training for an hour or so each day it should take about a month to learn.
C is a general purpose computer programming language developed in 1972 by Dennis Ritchie at the Bell Telephone Laboratories for use with the Unix operating system. It was named 'C' because many of its features were derived from an earlier language called 'B'.
A file is a container in computer storage devices used for storing data. When a program is terminated, the entire data is lost. Storing in a file will preserve your data even if the program terminates. If you have to enter a large number of data, it will take a lot of time to enter them all. However, if you have a file containing all the data, you can easily access the contents of the file using a few commands in C.