Linux For DevOps In One Shot | Complete Beginners to Advanced Linux (Hindi)

Introduction

This tutorial is designed to guide you through the essentials of using Linux for DevOps, covering everything from basic commands to advanced functionalities. Whether you're a beginner or looking to enhance your existing skills, this guide will provide you with a comprehensive overview of key Linux concepts and commands relevant to DevOps practices.

Step 1: Understanding the Internet and Servers

• Learn how the Internet operates and what role servers play.
• Familiarize yourself with the basic architecture of the Internet to set a foundation for using Linux in a networked environment.

Step 2: What is Linux OS and Setting Up a Linux Server

• Understand the Linux operating system and its significance in the DevOps realm.
• Follow these steps to set up a Linux server:
  1. Choose a Linux distribution (e.g., Ubuntu, CentOS).
  2. Download the ISO file from the official website.
  3. Create a bootable USB drive or use a virtual machine for installation.
  4. Boot from the USB or start the virtual machine and follow the installation prompts.
  5. Configure network settings and create user accounts as needed.

Step 3: Learning Basic Linux Commands

• Familiarize yourself with essential Linux commands that every DevOps engineer should know:
  • ls: List directory contents
  • cd: Change directory
  • cp: Copy files or directories
  • mv: Move or rename files
  • rm: Remove files or directories
• Practice using these commands in the terminal to navigate the file system and manage files.

Step 4: Advanced Linux Commands

• Explore more complex commands that enhance your productivity:
  • grep: Search text using patterns
  • find: Locate files within directories
  • sed: Stream editor for filtering and transforming text
  • awk: Pattern scanning and processing language
• Experiment with these commands on sample text files to understand their functionality.

Step 5: User and Group Management in Linux

• Learn how to manage users and groups:
  1. Create a new user: sudo adduser username
  2. Modify user properties: sudo usermod -aG groupname username
  3. Manage groups: sudo groupadd groupname
  4. Remove users and groups as necessary.
• Understand the importance of proper permissions and access control.

Step 6: File Management in Linux

• Master file management techniques:
  • Use commands like tar for archiving and gzip for compression.
  • Organize files into directories to maintain a clean structure.
  • Practice creating, deleting, and manipulating files and directories.

Step 7: File Transfer Commands

• Learn how to transfer files between systems using:
  • scp: Securely copy files over SSH.
  • rsync: Efficiently sync files between local and remote systems.
• Practice transferring files to and from a remote server.

Step 8: Linux Networking Commands

• Familiarize yourself with commands to manage and troubleshoot network connections:
  • ping: Test connectivity to another host.
  • ifconfig or ip: View and configure network interfaces.
  • netstat: Display network connections and routing tables.

Step 9: Volume Management with LVM

• Understand Logical Volume Management (LVM) for better disk space management:
  1. Install LVM tools if not already present.
  2. Create physical volumes: pvcreate /dev/sdx
  3. Create a volume group: vgcreate myvg /dev/sdx
  4. Create logical volumes: lvcreate -n mylv -L 10G myvg
• Learn to resize and manage logical volumes as needed.

Conclusion

In this guide, we've covered the fundamentals of Linux for DevOps, from setting up a server to mastering basic and advanced commands. By practicing the steps outlined, you will build a strong foundation in Linux that is essential for a career in DevOps. For further learning, consider exploring additional resources or enrolling in a structured training program.