# Level 2: Process Whisperer 💻 ## Overview Master process management and system resource control. ### Stage 2-1: Resource Detective **Mission**: Identify and manage resource-intensive processes **Setup**: ```bash # Create resource-intensive processes yes > /dev/null & dd if=/dev/zero of=/dev/null & ``` **Challenges**: 1. Identify top CPU-consuming processes 2. Find memory-intensive applications 3. Adjust process priorities 4. Kill runaway processes 5. Monitor system load **Success Criteria**: - [ ] Processes correctly identified - [ ] Resources optimized - [ ] System stability maintained - [ ] Efficient command usage **Skills Used**: - `top`/`htop` - `ps` - `nice`/`renice` - `kill`/`pkill` - `uptime` ### Stage 2-2: Service Sorcerer **Mission**: Troubleshoot and fix system services **Setup**: ```bash # Install and configure test services sudo apt install nginx sudo systemctl stop nginx ``` **Challenges**: 1. Check service status 2. Analyze service logs 3. Fix dependencies 4. Configure service parameters 5. Create basic systemd service **Success Criteria**: - [ ] Services running correctly - [ ] Logs properly analyzed - [ ] Dependencies resolved - [ ] Automation implemented **Skills Used**: - `systemctl` - `journalctl` - `service` - `status` - Log analysis