Last updated: July 2026. Written by Josh Hutcheson, OnlineCourseing editor. See our review methodology.
QUICK VERDICT
Bottom line: For most people the best place to start is Learn Linux in 5 Days on Udemy — 1.1M+ students, a 4.6 rating, and updated in 2026. If you’re aiming at a cloud/DevOps job, pair it with Imran Afzal’s Linux for Cloud & DevOps Engineers, and if you want a recognized credential, target the LFCS or RHCSA certification.
- Best for beginners: Learn Linux in 5 Days (Udemy)
- Best for cloud/DevOps: Linux for Cloud & DevOps Engineers (Udemy)
- Best free option: Fundamentals of Red Hat Enterprise Linux (Coursera/edX, audit free)
- Best for a certification: LFCS or RHCSA prep paths
Whatever you build a career on — cloud, DevOps, cybersecurity, web servers, or data — you’ll run into Linux. It powers the vast majority of web servers and cloud instances, so getting comfortable on the command line is one of the highest-leverage skills a developer or IT professional can pick up. We took the current top-rated Linux courses, verified they’re live and recently updated in July 2026, and ranked them by who they’re actually best for.
The list leans toward Udemy for beginners (it has the deepest, best-value catalog for hands-on Linux) and toward Coursera, edX, and the vendor certification tracks when you want a credential employers recognize.
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Linux isn’t a niche skill — it’s foundational infrastructure. It runs the overwhelming majority of web servers, virtually all of the top supercomputers, and the bulk of cloud instances on AWS, Azure, and Google Cloud. Android is built on the Linux kernel, and Docker containers are Linux under the hood. That means a huge range of roles quietly depend on it.
The career payoff is concrete. Linux fluency is a baseline expectation for cloud engineers, DevOps engineers, site reliability engineers, cybersecurity analysts, and backend developers — roles that consistently sit among the better-paid in tech. Job listings for these positions almost always list Linux or “command-line” experience as a requirement, and a recognized certification like the RHCSA or LFCS is a common shortlisting filter. Even if you never administer a server directly, knowing your way around a Linux shell makes you meaningfully more effective at debugging, automation, and understanding how production systems actually run.
| Course | Platform | Level | Rating | Best for |
|---|---|---|---|---|
| Learn Linux in 5 Days | Udemy | Beginner | 4.6 (48,776) | Fast beginner start |
| Linux for Cloud & DevOps Engineers | Udemy | Beg–Int | 4.5 (5,152) | Cloud/DevOps careers |
| Complete Linux Security & Hardening | Udemy | Intermediate | 4.6 (1,304) | Security & hardening |
| Learn Linux & Become a Sysadmin | Zero To Mastery | Beg–Int | Subscription | Structured career path |
| Fundamentals of Red Hat Enterprise Linux | Coursera / edX | Beginner | Audit free | Free, vendor-backed |
1. Learn Linux in 5 Days (Udemy) — best for beginners
If you’re starting from zero, start here. Jason Cannon’s course is the most popular beginner Linux course on Udemy — over 1.16 million students, a 4.6 rating from 48,776 ratings, and last updated in July 2026, so nothing is stale. In about 6.5 hours it takes you from “what is a terminal” to comfortably navigating the file system, managing permissions, editing files, and writing basic shell commands.
It’s deliberately practical and distribution-agnostic, so the skills transfer whether you end up on Ubuntu, Red Hat, or a cloud instance. The honest limitation: it’s a foundation, not a deep sysadmin or DevOps course — but it’s the fastest way to get genuinely comfortable, and the best value on this list.
2. Linux for Cloud & DevOps Engineers (Udemy) — best for cloud careers
Once you have the basics, this is the one to level up with if your goal is a cloud or DevOps role. Taught by Imran Afzal — one of Udemy’s most respected Linux instructors — it has 190,881 students, a 4.5 rating, and was updated in 2024. It focuses on the Linux skills you actually use day-to-day in cloud and DevOps: working on servers, managing services, and the command-line fluency that AWS, Azure, and GCP work assumes you already have.
It’s tighter and more role-focused than a sprawling “complete Linux” course, which is the point — it’s built for people heading toward infrastructure jobs rather than a general overview.
3. Complete Linux Security & Hardening (Udemy) — best for security
Security is where Linux skills pay off most, and this is the deepest dedicated course on the list. Also from Imran Afzal, it holds a 4.6 rating with 850,603 students and a June 2026 update across 16.5 hours. You’ll cover real hardening work: securing SSH, firewalls, file permissions and ACLs, SELinux, auditing, and locking down services with hands-on labs.
It assumes you already know your way around the command line, so take it after a beginner course. If you’re heading toward a cybersecurity or sysadmin role, it’s the most directly job-relevant course here — and it pairs well with our cybersecurity courses guide.
4. Learn Linux & Become a Sysadmin (Zero To Mastery) — best structured path
If you prefer a guided, cohort-style path with a community and career focus over a standalone video course, Zero To Mastery’s Linux track is a strong choice. It’s part of ZTM’s subscription (which also unlocks their DevOps, cloud, and security courses), so it works best if you plan to keep learning adjacent skills rather than buying a single course.
ZTM’s teaching is genuinely good and the projects are practical. It’s pricier than a one-off Udemy course, but the all-access model earns its keep if you’re on a longer IT-career track. See our full Zero To Mastery review for the pricing breakdown.
5. Linux Fundamentals (Coursera) — best university-style intro
If you prefer a structured, academic-style course with graded assessments and a shareable certificate, Coursera’s Linux Fundamentals (from LearnQuest) is a solid pick. It walks through the shell, file system, permissions, and basic administration at a measured pace, and you can audit the material for free or pay for the certificate.
It’s slower and more formal than the Udemy courses — better if you like a syllabus and quizzes than if you want to move fast. It’s also a good fit if your employer reimburses Coursera subscriptions.
6. Fundamentals of Red Hat Enterprise Linux — best free, vendor-backed course
Red Hat is the dominant enterprise Linux, so learning it directly from the source is valuable — especially if you’re heading toward the RHCSA certification. This official Red Hat course covers the essentials of working in a RHEL environment: the command line, files, permissions, and basic administration. It’s available on both Coursera and edX, and you can audit it for free, paying only if you want the certificate.
It’s the best free option on this list because it comes straight from the vendor and maps cleanly onto Red Hat’s certification path.
Paid vs. free Linux courses: which should you pick?
You can absolutely learn Linux for free — the Red Hat course above audits free, and there’s no shortage of free tutorials and documentation. So what does paying actually buy you? Three things: structure (a sequenced path so you’re not guessing what to learn next), practice and support (hands-on labs, projects, and a place to ask questions when you’re stuck), and a certificate you can put on a resume or LinkedIn.
Our honest take: start free to confirm you enjoy it, but don’t over-optimize for saving $15. A good Udemy course goes on sale regularly for around $12–$20, and the time it saves you — by giving you the right path instead of a pile of scattered tutorials — is worth far more than that. Reserve the bigger spend (ZTM’s subscription, or paid certificates) for when you’ve decided Linux is part of your career plan.
Best Linux certifications — and how to prep for them
Once you have the skills, a certification proves them to employers. The three that matter most:
- CompTIA Linux+ — the best vendor-neutral entry certification. It validates general Linux administration across distributions and is a common first cert for IT and cybersecurity roles.
- LFCS (Linux Foundation Certified Systems Administrator) — a hands-on, performance-based exam from the Linux Foundation itself. Highly respected because it tests real command-line ability rather than multiple-choice recall.
- RHCSA (Red Hat Certified System Administrator) — the gold standard if your career involves Red Hat/RHEL, which dominates enterprise. Also performance-based, and the Red Hat course above is a good on-ramp.
For prep, the beginner and DevOps courses above cover the LFCS and Linux+ foundations, and the Red Hat course maps to RHCSA. Whichever you target, build the skills first and treat the certification as the finish line, not the starting point.
How to choose the right Linux course
Match the course to where you are and where you’re headed:
- Complete beginner? Learn Linux in 5 Days — fastest, cheapest way to get comfortable.
- Targeting cloud/DevOps? Linux for Cloud & DevOps Engineers, then an AWS or Kubernetes course.
- Into security? Complete Linux Security & Hardening, after the basics.
- Want a credential? Start with the free Red Hat course and aim for RHCSA or LFCS.
- Prefer structure and a community? Zero To Mastery’s path.
Whatever you pick, install a Linux distro in a virtual machine (or use the free WSL on Windows) and practice alongside the course — Linux is learned by typing, not by watching.
Free ways to practice Linux while you learn
A course teaches you the concepts; you cement them by typing commands on a real system. You don’t need a spare computer — here are three free ways to get a hands-on Linux environment:
- WSL (Windows Subsystem for Linux): If you’re on Windows, install Ubuntu directly from the Microsoft Store in a couple of clicks. It gives you a real Linux command line inside Windows — the easiest starting point for most people.
- A virtual machine: Install VirtualBox (free) and run Ubuntu, Fedora, or a security distro inside it. You get a full desktop Linux you can break and reset without touching your main OS.
- A cloud free tier: AWS, Azure, and Google Cloud all offer free tiers where you can spin up a Linux server — great for practicing exactly the remote-administration workflow you’ll use on the job.
Whichever you pick, run every command from your course yourself rather than just watching. Muscle memory on the command line is the whole point.
Frequently asked questions
What is the best Linux course for beginners?
Learn Linux in 5 Days on Udemy is the best starting point for most people: over 1.1 million students, a 4.6 rating, updated in 2026, and designed to take you from zero to comfortable on the command line in about a week of study. It’s distribution-agnostic, so the skills transfer anywhere.
Can I learn Linux for free?
Yes. You can audit the Fundamentals of Red Hat Enterprise Linux course free on Coursera or edX, and there are strong free resources like the Linux Foundation’s intro materials. Free courses are great for the basics; paid courses add structure, projects, Q&A, and a certificate.
Which Linux certification is best?
For a vendor-neutral start, CompTIA Linux+. For a respected, hands-on credential, the Linux Foundation’s LFCS. For enterprise and Red Hat environments, the RHCSA is the gold standard. All are more valuable when backed by real command-line experience.
How long does it take to learn Linux?
You can learn the fundamentals — navigating the file system, permissions, and basic commands — in a week or two of focused study with a course like Learn Linux in 5 Days. Reaching job-ready sysadmin or DevOps competence typically takes a few months of consistent practice on real systems.
Do I need Linux to work in DevOps or cloud?
Effectively, yes. The vast majority of cloud servers and containers run Linux, and DevOps tooling assumes command-line Linux fluency. It’s one of the highest-return skills for cloud, DevOps, and cybersecurity careers — which is why we recommend pairing a Linux course with cloud or DevOps training.
Is Linux hard to learn?
Not to start. The basics — moving around the file system, editing files, managing permissions, and running common commands — are approachable within a couple of weeks, especially with a structured beginner course. It feels different from Windows or macOS because so much happens on the command line, but that’s also what makes it powerful. Depth (scripting, networking, security, administration) takes longer, but you become useful surprisingly quickly.
Conclusion
Linux runs the internet’s infrastructure, so command-line fluency is a durable, high-value skill. If you’re just starting, Learn Linux in 5 Days is the fastest and best-value on-ramp; from there, branch into cloud/DevOps or security depending on your goal, and aim for the LFCS or RHCSA once your skills are solid. Install a distro in a virtual machine, follow along by typing every command, and you’ll be comfortable in the terminal faster than you expect.
Related guides: Best Linux Distros for Hacking · Best Online Courses by Subject · Best Cloud Certifications · Best Ansible Courses