# A Guide to Linux /proc Filesystem

DevFeed: [A Guide to Linux /proc Filesystem](<https://devfeed.tech/articles/a-guide-to-linux-proc-filesystem-20870.md>)

Original publisher: [Read original article](<https://linuxblog.io/linux-proc-filesystem/>)

Author: Hayden James

Published: 2026-08-17T10:34:50Z

Content type: tutorial

Language: en

Sources: [Hayden James](<https://devfeed.tech/sources/hayden-james.md>)

Topics: [Linux](<https://devfeed.tech/topics/linux.md>), [Kernel](<https://devfeed.tech/topics/kernel.md>), [Processes](<https://devfeed.tech/topics/processes.md>), [cpu](<https://devfeed.tech/topics/cpu.md>), [Network](<https://devfeed.tech/topics/network.md>)

Tags: [blog](<https://devfeed.tech/tags/blog.md>), [cpu](<https://devfeed.tech/tags/cpu.md>), [desktop](<https://devfeed.tech/tags/desktop.md>), [examples](<https://devfeed.tech/tags/examples.md>), [filesystem](<https://devfeed.tech/tags/filesystem.md>), [guide](<https://devfeed.tech/tags/guide.md>), [kernel](<https://devfeed.tech/tags/kernel.md>), [linux](<https://devfeed.tech/tags/linux.md>), [network](<https://devfeed.tech/tags/network.md>), [process](<https://devfeed.tech/tags/process.md>), [processes](<https://devfeed.tech/tags/processes.md>), [server](<https://devfeed.tech/tags/server.md>), [sysadmins](<https://devfeed.tech/tags/sysadmins.md>)

## AI overview

A practical guide to the Linux /proc virtual filesystem, explaining how it exposes live kernel state such as running processes, memory, CPU information, network statistics, and hardware details. It also describes how standard tools read this data and introduces useful files and per-process directories.

## Source excerpt

The /proc filesystem is a live window into the Linux kernel: process state, memory layout, CPU counters, network stats, and writable kernel tunables, all accessible with nothing but cat and grep. This guide walks through the most useful files and per-process directories with practical examples. Continue reading...