System Metrics

A simple Python script to collect and display system metrics across Windows, macOS, and Linux.

Features

• Cross-platform: Works on Windows, macOS, and Linux
• Automatic fallbacks: Uses psutil when available, otherwise falls back to system commands
• Comprehensive metrics: Collects CPU usage, memory usage, disk usage, uptime, and hostname
• Dual output: Displays both JSON report and formatted table

Requirements

• Python 3.6+
• psutil (optional but recommended for better performance)

Installation

1. Clone or download system_metrics.py
2. (Optional) Install psutil for enhanced functionality:

   pip install psutil

Usage

Run the script directly:

python system_metrics.py

Output

The script provides two output formats:

1. JSON Report: Machine-readable format with all metrics
2. Table Report: Human-readable formatted table

Sample Output

System Metrics Collection
==================================================

JSON Report:
==================================================
{
  "timestamp": "2025-09-11T10:30:45.123456",
  "os": "Linux",
  "hostname": "mycomputer",
  "cpu_percent": 25.4,
  "memory_percent": 67.8,
  "disk_percent": 45.2,
  "uptime_seconds": 86400.0,
  "uptime_formatted": "1d 0h 0m",
  "psutil_available": true
}

System Metrics Table:
==================================================
Metric               Value                        
--------------------------------------------------
Timestamp            2025-09-11T10:30:45.123456   
OS                   Linux                        
Hostname             mycomputer                   
CPU Usage            25.4                         %
Memory Usage         67.8                         %
Disk Usage           45.2                         %
Uptime               1d 0h 0m                     
Uptime (seconds)     86400.0                      
psutil Available     true                         

Metrics Collected

• CPU Usage: Current CPU utilization percentage
• Memory Usage: RAM usage percentage
• Disk Usage: Primary disk usage percentage
• Uptime: System uptime in both seconds and formatted time
• Hostname: System hostname
• OS: Operating system type

Fallback Methods

When psutil is not available, the script uses:

• Linux: /proc/stat, /proc/meminfo, /proc/uptime, df command
• macOS: top, vm_stat, sysctl, df commands
• Windows: wmic commands for system information

License

This project is licensed under the GNU General Public License v3.0 - see the [LICENSE] file for details.