• About Linux

    What is Linux? Where is Linux used?
    Linux is a free and open-source operating system that controls and manages computer hardware and software, just like Windows or macOS. It is widely used in servers, cloud systems, mobile devices (like Android), and embedded systems. Known for its stability, security, and flexibility, Linux is the backbone of the internet and modern IT infrastructure. It supports powerful command-line tools, makes automation easy, and is essential for careers in DevOps, cloud computing, cybersecurity, and system administration.
     
    why we choose Linux?
    • Free to Use – No license cost
    • Open Source – Anyone can view or modify the code
    • Secure – Less chance of viruses and malware
    • Stable & Reliable – Can run for years without crashing
    • Fast & Lightweight – Works well even on old computers
    • Powerful Command Line – Easy to control system with terminal
    • Perfect for Programmers & DevOps – Supports all major tools
    • Used in Servers & Data Centers – Backbone of the internet
    • Highly Customizable – You can change almost anything
    • Community Support – Huge global community for help and updates
    • Runs on Any Device – From desktops to smartphones to supercomputers
    • Preferred by Tech Companies – Used by Google, Amazon, NASA, etc.
    Is Linux in High Demand in IT?
    Yes — Linux is in very high demand in the IT industry, and here’s why:
    1. Most Servers Run on Linux
    Over 90% of servers in the world — including websites, cloud platforms, databases — run on Linux.
    So, companies need Linux Admins, Cloud Engineers, and DevOps Engineers with Linux knowledge.
    2. Core Skill for DevOps, Cloud, and Cybersecurity
    Tools like AWS, Docker, Kubernetes, Jenkins, Ansible all run on Linux.
    That’s why:
    • No DevOps without Linux
    • No real Cloud skills without Linux
    • Cybersecurity experts must know Linux
    3. Top Companies Hire Linux Professionals
    Companies like:
    • Google
    • Amazon
    • Facebook
    • NASA
    • Infosys, TCS, Wipro
    All hire people with Linux skills for system admin, SRE, and DevOps roles.
    4. Growing Job Market
    As per job portals:
    • Thousands of openings mention “Linux” as a required skill.
    • Salaries range from ₹5 LPA (fresher) to ₹15+ LPA (experienced).
    5. Open-Source Boom
    More companies are shifting to open-source tools and infrastructure — and Linux is the foundation of all that.
     
    Career Growth After Learning Linux
    Learning Linux opens many powerful career paths in the IT industry. Here's where you can go after gaining good Linux skills:
    1. Linux System Administrator
    You manage servers, users, files, security, and networking.
    • Salary (India): ₹4–7 LPA (fresher)
    • Demand: Very high in data centers, hosting companies, IT firms.
    2. DevOps Engineer
    You automate deployments, CI/CD pipelines, and manage infrastructure using Linux tools.
    • Skills Needed: Linux + Git + Docker + Jenkins + Ansible
    • Salary: ₹6–15+ LPA
    • Career Growth: Very fast and global opportunities
    3. Cloud Engineer (AWS/Azure/GCP)
    You work with cloud services (like AWS EC2, S3) — most of which run on Linux.
    • Skills: Linux + AWS/GCP + Scripting
    • Salary: ₹5–12+ LPA
    • Scope: Cloud is the future — high-paying and in demand
    4. Cybersecurity Analyst
    You monitor, secure, and analyze systems — most cybersecurity tools are Linux-based.
    • Skills: Linux + Networking + Tools (Nmap, Wireshark, etc.)
    • Salary: ₹5–10+ LPA
    • Certifications help: CEH, CompTIA, etc.
    5. Site Reliability Engineer (SRE)
    You maintain uptime, monitoring, and performance of large systems.
    • Linux knowledge is critical
    • Used by Google, Meta, fintech companies, etc.
    6. Freelancer / Remote Admin
    You can manage servers for clients, host websites, secure systems — all remotely.
    • Platforms: Fiverr, Upwork, Freelancer
    • Good for side income or full-time freelancing
    7. Tech Support / L1-L3 Support (Linux)
    Work in support teams for Linux-based hosting, server monitoring, and infrastructure.
    • Linux Basic Commands Book
      Linux provides a set of powerful and commonly used commands to interact with the system efficiently. The cd command is used to change directories, while ls lists the contents of a directory. To clear the terminal screen, the clear command is used. The mkdir command helps create new folders, and pwd shows the current working directory. The rm command is used to remove files or directories, and touch is used to create empty files. To edit or view text files directly in the terminal, vi is a powerful editor. The / symbol represents the root directory, which is the top level of the Linux filesystem. To manage users, adduser is used to create a new user, and userdel is used to delete an existing one. The history command displays a list of previously executed commands, allowing users to track or reuse them easily. These commands form the foundation for working effectively in a Linux environment.

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    • Linux Practice URL

      Linux Practice Environment