What Are Proc Files in Linux?

Proc file system (procfs) is virtual file system created on fly when system boots and is dissolved at time of system shut down. It contains the useful information about the processes that are currently running, it is regarded as control and information centre for kernel.

What is the proc folder?

The /proc/ directory — also called the proc file system — contains a hierarchy of special files which represent the current state of the kernel — allowing applications and users to peer into the kernel’s view of the system.

What is the purpose of the proc filesystem?

The /proc file system is a mounted file system used to trace a process system call, receive signals, and incurred machine faults. The /proc file system provides access to the state of each active process and thread in the system.