3. Process Management, OS Signals & Systemd Unit Services
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Process Management, OS Signals & Systemd Unit Services
Inspect processes with ps/top, kill processes with SIGKILL/SIGTERM, configure systemd unit files, and view journalctl logs.
Process Control & Systemd Service Management
### Linux Process Signals & Systemd
- **SIGTERM (15)**: Graceful process termination signal allowing cleanup.
- **SIGKILL (9)**: Immediate forced process termination by kernel.
- **systemctl**: Systemd management utility controlling daemon units (`systemctl start/stop/restart/status app.service`).
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