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In the world of Linux, understanding what's happening at the file system level can be crucial for system administration, debugging, and performance monitoring. One of the powerful tools that makes this possible is fatrace. It reports file access events from all running processes, giving you a comprehensive overview of which processes are reading from or writing to your files. fatrace stands for "File Access Trace." It taps into the power of the Linux fanotify API to monitor file system events. With fatrace, you can track which files are opened, read, written, or closed. This tool is incredibly useful for system admins, developers testing applications, or simply for educational purposes to understand system behavior.