Linux Files How to use open(), write(), read(), and lseek() system calls.

This video is about working with files in Linux using C++ and various system calls. We’ll utilize system calls like open() to create and open files with specific permissions, write() to write data, and read() to extract information from files. We’ll also use lseek() to adjust the file offset for proper reading and appending, close() to ensure files are closed correctly, and chmod() to dynamically modify file permissions during execution.
tags covered O_RDWR, O_WRONLY, O_CREAT, S_IRUSR , S_IWUSR

Timestamps:

00:00 Start
1:30 How to use open() system call
3.42 How to use write() system call
6:00 How to read() from the buffer
7:30 Why and how to use lseek() system call
14:54 Another example when to use lseek()

Видео Linux Files How to use open(), write(), read(), and lseek() system calls. канала Tech Fairy