A high-performance system utility written in C that interfaces directly with the Linux kernel via the /proc virtual filesystem. This tool provides real-time telemetry on process states, memory utilization, and system-wide health metrics.

In Linux, everything is a file. ProcView leverages this philosophy by traversing and parsing the /proc directory—a pseudo-filesystem that acts as an interface to internal kernel data structures. This project demonstrates low-level system programming, efficient file I/O, and memory management.

• PID Discovery: Dynamic discovery of active processes using dirent.h directory scanning.
• Memory Telemetry: Accurate extraction of Resident Set Size (RSS) and virtual memory statistics from /proc/[pid]/status.
• Process State Mapping: Monitors process lifecycles (Running, Sleeping, Zombie) by parsing kernel-level stat files.
• Resource Efficiency: Implemented with minimal overhead to ensure monitoring doesn't impact system performance.

• Language: C (Standard: C11)
• Operating System: Linux (Kernel 2.6.x+)
• Concepts: File Descriptors, Virtual Filesystems, System Calls, Buffer Management.

1. Scanner Module: Iterates through /proc to filter numeric PID directories.
2. Parser Module: Opens and decodes pseudo-files (stat, status, cmdline) using fscanf and fgets.
3. Reporter Module: Formats raw kernel data into a human-readable CLI table.

• A Linux-based operating system.
• GCC (GNU Compiler Collection).

Build the binary using the following command:

make

Run the explorer with standard permissions (some processes may require sudo to view full details):

make run