Exploring the /proc filesystem with Python and shell commands
/proc Talk

© Lead Image © Ioannis Kounadeas, Fotolia.com
The Linux /proc virtual filesystem offers a window into a running system – look inside for information on processes and kernel activity.
The proc
filesystem [1] (procfs for short), is a Linux pseudo-filesystem that provides an interface to the operating system's kernel data structures. Procfs leverages the well-known concept of "in Unix, everything is a file" [2] to provide the same uniform interface of Unix file I/O (e.g., open, read, write, close, etc.) for getting kernel- and OS-related information. This uniformity makes it easier for the Linux programmer or system administrator to learn about the kernel, with fewer interfaces to learn.
Procfs is usually mounted at /proc
. Many kinds of information about the operating system (OS) and processes running in it are exposed via pseudo-files in procfs. By reading data from /proc
files, you can learn a lot of useful information about the system.
This article shows some ways of getting information from procfs using custom Python programs and Linux commands.
[...]
Buy this article as PDF
(incl. VAT)
Buy Linux Magazine
Subscribe to our Linux Newsletters
Find Linux and Open Source Jobs
Subscribe to our ADMIN Newsletters
Support Our Work
Linux Magazine content is made possible with support from readers like you. Please consider contributing when you’ve found an article to be beneficial.

News
-
Linux Kernel 6.17 is Available
Linus Torvalds has announced that the latest kernel has been released with plenty of core improvements and even more hardware support.
-
Kali Linux 2025.3 Released with New Hacking Tools
If you're a Kali Linux fan, you'll be glad to know that the third release of this famous pen-testing distribution is now available with updates for key components.
-
Zorin OS 18 Beta Available for Testing
The latest release from the team behind Zorin OS is ready for public testing, and it includes plenty of improvements to make it more powerful, user-friendly, and productive.
-
Fedora Linux 43 Beta Now Available for Testing
Fedora Linux 43 Beta ships with Gnome 49 and KDE Plasma 6.4 (and other goodies).
-
USB4 Maintainer Leaves Intel
Michael Jamet, one of the primary maintainers of USB4 and Thunderbolt drivers, has left Intel, leaving a gaping hole for the Linux community to deal with.
-
Budgie 10.9.3 Now Available
The latest version of this elegant and configurable Linux desktop aligns with changes in Gnome 49.
-
KDE Linux Alpha Available for Daring Users
It's official, KDE Linux has arrived, but it's not quite ready for prime time.
-
AMD Initiates Graphics Driver Updates for Linux Kernel 6.18
This new AMD update focuses on power management, display handling, and hardware support for Radeon GPUs.
-
AerynOS Alpha Release Available
With a choice of several desktop environments, AerynOS 2025.08 is almost ready to be your next operating system.
-
AUR Repository Still Under DDoS Attack
Arch User Repository continues to be under a DDoS attack that has been going on for more than two weeks.