procpidfd

In the world of Linux, understanding how your processes manage their resources is crucial, especially when it comes to handling file descriptors. If you’ve ever wondered which files a particular process is accessing, the /proc/$PID/fd directory is your go-to resource. Let's dive into how you can parse this directory to list open file descriptors of a process. A: In Linux, /proc is a pseudo-filesystem that provides an interface to kernel data structures. It is often used to access information about the system and its running processes. For any running process, you can access a directory named by its Process ID (PID), such as /proc/$PID.