In this video, I walk through a simple example of how the fork() system call works in C. Using an example inspired by the Operating Systems: Three Easy Pieces (OSTEP) textbook, I’ll show you exactly what happens when a process forks, how parent and child processes differ, and how to print their outputs clearly.
We’ll cover:
What fork() does
How to write a minimal C program that uses fork()
How parent and child processes run independently
If you're learning about operating systems, processes, or system calls, this is a great foundational concept, and mastering it early will help a lot as the course gets deeper.
