linux-diag

What problem does it solve?

Linux system problems such as slow performance, unresponsiveness, or unexpected errors are common and often require methodical investigation. This Skill provides a structured knowledge base with diagnostic steps and reference material to guide users through CPU, memory, disk, network, process, service, log, GPU/NVIDIA, graphics (xrdp), and Docker/container issues.

Core Features & Use Cases

• Comprehensive diagnostic categories with practical commands to identify root causes.
• Flowcharts and reference material to guide step-by-step troubleshooting.
• Use Case: When a Linux server slows down, follow the CPU, memory, disk, network, and service checks to isolate bottlenecks and plan remediation.

Quick Start

Start with baseline checks: uptime, free -h, df -h, top -b -n1, dmesg | tail -30, and journalctl -p err -n 20 to surface immediate issues; then consult the referenced COMMANDS.md and FLOWCHART.md for deeper diagnostics.