Linux File System Explained 🐧

Ever wondered what all those folders actually do?

This graphic breaks down the Linux directory structure in a simple way.

Linux File System – Simple Meanings

/ – The main starting point of Linux

/boot – Files needed to start the system

/etc – System settings and configuration files

/home – Personal folders for users

/root – Home folder for the administrator (root user)

/opt – Extra or third-party software

/dev – Files that represent hardware devices

/var – Files that change often (logs, cache)

/bin – Basic commands used by users

/sbin – System-level commands for admins

/usr – Installed programs and shared tools

/proc – Live system and process information

/mnt – Temporary place to attach storage

/sys – System and hardware information

/media – USB drives, CDs, and external devices

/run – Runtime data used after boot

/lost+found – Recovered files after disk errors

/lib – Required files for programs to run

/srv – Data used by services (web, ftp, etc.)

New year question for Linux folks 👇

What Linux habit are you consciously trying to improve this year?

Linux File Permission for Beginners

What part of Linux do you use daily but still don’t fully understand?

Concepts, tools, services — all answers welcome.

Kubernetes commands cheat sheet

RAID Levels Explained: When Performance Beats Redundancy (and When It Doesn’t)

RHEL Root Password Recovery — Step-by-Step Recovery Tip

This is one recovery method many admins rely on.

How do you handle root password recovery in your environment?

Do you follow a different process, add extra safeguards, or restrict this entirely?

DevOps Interview Questions

Processes vs Services — a Linux concept worth getting right

One Linux concept that quietly improves troubleshooting

A small Linux concept with a big impact in production

Understanding processes vs services in Linux

In production, security issues often come from access that was never cleaned up.

Old sudo rules, temporary access, “just for now” permissions — they tend to stick around.

Who still has sudo access on your systems?

Curious how others review or control this in real environments.

Hardening isn’t about doing everything.
It’s about not missing the basics.

This checklist focuses on the things that actually reduce risk.

Curious what others would 'add or remove' from this list.

#LinuxTeck #linux #DevOps #LinuxAdmin #SysAdminLife #linuxtips #serverrecovery #ITOperations

After my first Linux class…. One Linux class in… should I be this confident already?

👋 Welcome to LinuxTeck

Linux commands used in production
1–2 short posts daily
No spam | No theory | Only practical

Forward to your Linux friends

Running a command in Linux looks simple.
Under the hood, a lot happens very fast.

The shell hands it off.
The kernel steps in.
Memory gets allocated.
A process is scheduled.

Understanding this flow helps explain why things fail, hang, or slow down — not just that they do.

This diagram is a simplified view of that path.

Cron Jobs Made Simple – A Linux Cheat Sheet