Operating Systems & Systems Programming Labs

A centralized repository for low-level systems programming, architectural explorations, and Linux kernel interactions. This project tracks the development of core engineering skills, focusing on process management, memory allocation, and hardware-software interfacing.

🛠 Tech Stack

• Languages: C, Java, Bash
• Environment: Linux (Ubuntu/Debian) / JVM
• Compiler: GCC, JDK 17+
• Build Tools: Make

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📂 Repository Structure

Process Management & Automation

Focuses on the fundamentals of process creation and shell integration.

• Core Concepts: fork(), execlp(), child process spawning, and Bash automation.
• Project: A C-based shell wrapper that executes custom Bash scripts for automated system logging and directory structuring.

System Resource Monitoring

Explores real-time kernel data and process synchronization.

• Core Concepts: waitpid(), execvp(), multi-process synchronization, and POSIX system calls.
• Project: An end-to-end system info collector that spawns independent child processes to capture kernel versions, uptime, and hardware utilization.

Multithreading & Synchronization

Explores concurrent execution and resource protection using Java Threads.

• Core Concepts: Thread Lifecycle (start, join), Race Conditions, and Monitors via synchronized.
• Project: A shared ATM simulation demonstrating how concurrent withdrawals lead to data inconsistency and how to resolve it using mutual exclusion.

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🚀 Getting Started

Prerequisites

Ensure you have the following installed:

For C and Bash

sudo apt update && sudo apt install build-essential

For Java

sudo apt install default-jdk

Compilation & Execution

Navigate to any sub-directory to find specific build instructions. Generally:

• C Projects: Use the provided Makefile.
• Java Projects: Use javac FileName.java to compile and java FileName to run.

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Developed by: Youssef Walid Elsayed Zaki