Journalctl

Journalctl is a command-line tool used on Linux systems to view system logs stored by the systemd journal. It provides a centralized way to access entries about system processes, services, and applications, helping administrators and users troubleshoot issues or monitor system activity. By using journalctl, you can filter logs by time, service, or priority, making it easier to find relevant information. Essentially, it acts as a detailed diary of what your computer has been doing, allowing you to review and analyze system behavior efficiently.