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Linux for Network Engineers Course | 12 Hours | English Edition | BridgeWhy

  • "Unlock the Power of Network Automation and Take Control of Your Network Infrastructure with Confidence!"

Created by Vishnu Dutt

  • English

About the course

This page is the English edition of the Linux for Network Engineers course on BridgeWhy.

The full curriculum is below. Read it carefully before you decide. The course was built for a very specific learner: a working or aspiring network engineer who needs Linux skills to work with modern routers, switches, controllers, and automation tools. It is not a developer Linux course. It is not a sysadmin Linux course. Every lesson maps to a real problem a network engineer faces on the job.


Why an English edition? 

Because most networking documentation, vendor configuration guides, certification exam questions, and global interviews happen in English. If you plan to work with international teams, read RFCs, or chase a certification like CCNA, CCNP, or CCIE, you need to be comfortable with Linux terms in English. This edition keeps the teaching in simple international English so that no learner is left behind by complex vocabulary.


The course is taught by Vishnu Dutt, founder of BridgeWhy. 

He has 19+ years of experience at Cisco and has trained 15000+ learners across 100+ countries. His teaching philosophy is why first. Before a command is taught, you will know why that command was invented. Before a concept is taught, you will know which real world problem forced that concept to exist. This style sticks. It also makes interviews easier, because you can explain in your own words instead of reciting memory.


The curriculum is built around 10 lessons across 12 hours. 

Each lesson covers one tight idea, with EVE-NG labs that you can repeat as many times as you need. The lessons start from the why behind any operating system and end with bash scripting and software management. The middle covers the Linux file system, file permissions, redirection and pipes, users and groups, and networking in Linux. By the end you will be ready to log into any modern controller, navigate the file system, read logs, fix permissions, and write small scripts.


Looking at the full lesson list below will tell you exactly what you are signing up for. There are no surprises and no hidden topics. If a topic is not in the lesson list, it is not in this course.

Recommended choice:

Most learners get the most value from the [Linux for Network Engineers Hindi + English Package](https://www.bridgewhy.com/courses/Linux-for-Network-Engineers-65489e57e4b096925cc2a61f) because it gives you both editions in one purchase. If you are sure you only want English, this page is for you. If you also want to build deep networking knowledge alongside Linux, look at CCNA for Know Nothing Learner, Routing Fundamentals, and Switching Fundamentals. For the next step in automation, the path is Python from Scratch and then Network Automation from Scratch.



What you will learn

Lesson 1: Why behind Operating System
Why do we even need an operating system? Computer hardware understands only binary signals. A human user thinks in actions like "open a file" or "send a packet over the network." Some software layer must sit between the two and translate. This lesson explains exactly what that layer does. You will learn the role of the kernel, the meaning of user space and kernel space, the difference between an operating system and a shell, the role of system calls, and the position of Linux in the history of operating systems. By the end of this lesson, you will understand the full motivation behind Linux, which makes every later lesson easier to absorb.

Lesson 2: Let us Start Linux
This lesson takes you from zero to your first usable Linux session. You will see the boot process, the login prompt, and the first shell prompt. You will learn what a shell really is, why bash became the default shell on most distributions, and the difference between a terminal, a console, and a shell. You will run your first commands: pwd, ls, cd, mkdir, touch, and cat. You will also learn how to read a Linux command, how to use the man pages, and how to recover from common beginner mistakes. The lesson ends with a clear mental model of how every later command works.

Lesson 3: Linux File System Part 1
In Linux, everything is treated as a file. Hardware devices appear as files under /dev. System information appears as files under /proc and /sys. Even running processes can be inspected as files. This lesson explains the standard Linux directory layout: /, /bin, /sbin, /etc, /var, /home, /usr, /tmp, /opt, /dev, /proc, /sys. You will learn what each directory holds, why it was designed that way, and why this is called the Filesystem Hierarchy Standard. By the end you will be able to walk into any unfamiliar Linux box and know roughly where things should be.

Lesson 4: Linux File System Part 2
This lesson goes deeper into how you actually work with the file system. You will learn the difference between absolute paths and relative paths, why this difference matters in scripts, and how to use shortcuts like the dot, double dot, and tilde. You will learn the different file types in Linux: regular files, directories, character devices, block devices, sockets, named pipes, and symbolic links. The heart of this lesson is the difference between hard links and soft links. You will see when each one is the right choice, what happens to a hard link if the original file is deleted, and why /bin and /usr/bin often use symbolic links.

Lesson 5: File Permissions and Operations
This is the lesson where careless engineers learn caution. A production network device runs live traffic. One careless change to a config file or a startup script can drop a customer service. Linux permissions are the safety system. You will learn the three permission types of read, write, and execute. You will learn the three permission classes of owner, group, and others. You will learn the numeric mode (like 755 and 644) and the symbolic mode (like u+x and g+w). You will learn chmod, chown, chgrp, and umask. You will also learn the special bits: setuid, setgid, and the sticky bit, with a clear explanation of why each one exists.

Lesson 6: Lab 1 — Redirection, Pipes and File Permissions
This is the first full lab in the course. You will spend the entire session inside EVE-NG, running real commands on a real Linux machine. You will redirect standard output and standard error to files, append to logs without overwriting, and read from files as command input. You will chain commands with pipes to filter, count, and sort output. You will then break file permissions on purpose, see exactly which error appears, and fix the problem using chmod and chown. The goal is to take the theory from Lesson 5 and turn it into hand memory.

Lesson 7: Concept of Users and Groups Part 1
A Linux machine is rarely a single user system. Multiple engineers log in. Some processes run as system users. Files belong to different owners. This lesson explains the foundation: /etc/passwd, /etc/shadow, and /etc/group. You will learn what each field in these files means, why password hashes were moved out of /etc/passwd into /etc/shadow, and why the group file exists as a separate concept. You will also learn the difference between a primary group and a secondary group, and how a user's effective permissions are calculated.

Lesson 8: Concept of Users and Groups Part 2
Now that you understand the files, this lesson teaches the commands and the security model. You will learn useradd, usermod, userdel, groupadd, and groupmod. You will see how to change ownership of files, how to add a user to multiple groups, and how to lock and unlock accounts. The lesson also covers privileged access: the difference between su and sudo, the role of the /etc/sudoers file, and how visudo prevents you from breaking sudo by editing the wrong way. By the end you will know how to give a junior engineer limited access without giving away the whole machine.

Lesson 9: Networking in Linux
Modern network gear is increasingly Linux based. SD-WAN controllers, SD-Access fabric nodes, BGP-EVPN data center fabrics, and cloud routers all expose a Linux shell under the cover. This lesson teaches the network commands you will use on real production gear. You will learn the modern ip command and how it replaced the older ifconfig and route commands. You will work with ip addr, ip link, ip route, ip neigh, and ip rule. You will use ping and traceroute correctly. You will read network state with ss and netstat. And you will get an introduction to tcpdump so you can capture packets directly on the box.

Lesson 10: Bash Scripting and Software Management
A network engineer who can write a small bash script saves hours every week. This lesson teaches you the bash building blocks: shebang lines, variables, command substitution, quoting rules, conditional statements, for loops, while loops, and simple functions. You will write small but useful scripts that loop through interfaces, check service status, and parse output. The second half of the lesson covers software management. You will learn apt on Debian and Ubuntu, yum and dnf on Red Hat and CentOS, and the difference between binary packages and source packages. You will also learn why each distribution chose a different package manager and how this affects your daily work.

Course Curriculum

Know your instructor


Frequently asked Questions


What is covered in this English edition of the course?

The full 10 lesson curriculum across 12 hours, taught in simple international English. Topics include operating system theory, Linux basics, the Linux file system in two parts, file permissions, a full hands on lab on EVE-NG, users and groups in two parts, networking in Linux, and bash scripting plus software management.

How is this different from a regular Linux beginner course?

A regular Linux beginner course teaches Linux from a developer or system administrator angle. This course teaches Linux from a network engineer angle. The selected topics, the labs, and the examples are all chosen because they appear in your work life as a network engineer.

Should I buy the English edition or the Hindi plus English Package?

If you are fully comfortable in English and never want to revise in Hindi, the English edition is enough. If you sometimes want to hear a difficult concept in Hindi as well, the Linux for Network Engineers Package gives you both versions in one price, which is the most popular option.

Will this course help with CCNA, CCNP, or CCIE preparation?

Yes, indirectly. Cisco exams are not Linux exams. But many modern Cisco platforms run Linux, and the lab platforms you will use for certification practice run on Linux. Pair this course with CCNA for Know Nothing Learner for a strong job ready combination.

Will this course help with network automation?

Yes. Linux is the operating system under almost every automation tool. After completing this course, Python from Scratch followed by Network Automation from Scratch is the natural next step.

Do I need to know Linux before this course?

No. Lesson 1 starts from the very basic question of why an operating system exists. You only need a working computer and motivation.

What lab tool is used for the demos?

All labs run on EVE-NG. EVE-NG runs router, switch, firewall, and Linux images together in one environment, so you can simulate a real production network.

Is the English used in the course difficult to follow?

No. Vishnu uses simple international English with short sentences. The vocabulary stays at an intermediate level. Heavy idioms and complex grammar are avoided on purpose.

Is this course enough on its own to land a network engineer job?

This course gives you the Linux part of the modern network engineer skill set. To get fully job ready, also study CCNA level networking and at least one routing protocol in depth. Look at Routing Fundamentals, Switching Fundamentals, and BGP from Scratch.

Will this course help in technical interviews?

Yes. The course covers the exact Linux questions that come up in network engineer interviews. For mock interview practice, add the Interview Preparation Series.

What about advanced Linux topics like kernel tuning or container internals?

This course stays focused on what a network engineer needs daily. Kernel tuning, container internals, and deep system administration are not in scope. After this foundation, you can move to more specialized Linux courses later.

Can I get a certificate after finishing this course?

Yes. A BridgeWhy completion certificate is issued after you finish all 10 lessons.

What if I find a lesson difficult?

You can rewatch any lesson as many times as you want during your access period. You can also post questions on the BridgeWhy question and answer channel.

How long do I keep access to the course?

This depends on your access plan. Pick from 3 Month Access, 1 Year Access, or Lifetime Access.

Where can I learn more about BridgeWhy?

Visit the About Us page to read about the teaching philosophy and the instructor's background.

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