Log files are records created by computer systems, applications, or devices that document events, processes, and activities. They help track what happens within a system, including errors, user actions, and system performance. This information is crucial for troubleshooting issues, monitoring system health, and ensuring security. Typically stored in plain text format, log files can be analyzed to identify patterns or anomalies. They are commonly used in various fields, including software development, network management, and cybersecurity. By reviewing log files, administrators can gain insights into system behavior and improve overall efficiency.