Primary course sources: the Week 03 four-up print edition; Module 3 sections 3.3, 3.4, and 3.5; M3 Key Takeaways; and the supplied GDB Cheat Sheet. Local source folder: C:\Users\13142\Desktop\MCIT\CIT5950\Lectures\module-3-c-debugging-and-process-management.

Supplemental API checks and slide corrections: waitpid、read、write、scanf、GDB stepping、GDB fork。

Teaching code is independently written and reviewed. It has not been compiled or executed in this environment. Example values and state traces are reasoned predictions, not captured run logs. Scheduling does not guarantee a fixed parent/child execution order.