monitor.py

import psutil
import time
import os

def clear_screen():
    os.system('clear' if os.name == 'posix' else 'cls')

def get_cpu_usage():
    return psutil.cpu_percent(interval=1)

def get_memory_usage():
    mem = psutil.virtual_memory()
    return mem.used / (1024 ** 2), mem.total / (1024 ** 2), mem.percent

def get_disk_usage():
    disk = psutil.disk_usage('/')
    return disk.used / (1024 ** 3), disk.total / (1024 ** 3), disk.percent

def get_network_usage():
    net1 = psutil.net_io_counters()
    time.sleep(1)
    net2 = psutil.net_io_counters()
    upload_speed = (net2.bytes_sent - net1.bytes_sent) / 1024
    download_speed = (net2.bytes_recv - net1.bytes_recv) / 1024
    return upload_speed, download_speed

def main():
    while True:
        clear_screen()
        print("="*40)
        print("   Linux System Resource Monitor")
        print("="*40)

        cpu = get_cpu_usage()
        used_mem, total_mem, mem_percent = get_memory_usage()
        used_disk, total_disk, disk_percent = get_disk_usage()
        upload, download = get_network_usage()

        print(f"CPU Usage:        {cpu:.2f}%")
        print(f"Memory Usage:     {used_mem:.2f}MB / {total_mem:.2f}MB ({mem_percent:.2f}%)")
        print(f"Disk Usage:       {used_disk:.2f}GB / {total_disk:.2f}GB ({disk_percent:.2f}%)")
        print(f"Network Speed:    ↑ {upload:.2f} KB/s   ↓ {download:.2f} KB/s")

        print("\nPress Ctrl+C to exit.")
        time.sleep(1)

if __name__ == "__main__":
    try:
        main()
    except KeyboardInterrupt:
        print("\nExiting monitor...")