Live Online Style Video +Live Instructor + Official Course-Book + Hands-on Labs


  1. Power Packed 14 Hours (Edited from 40 hours of Live Training)
  2. 6 months access to videos.
  3. Access via Laptop, Tab, Mobile, and Smart TV.
  4. Certificate of Completion.
  5. Official Course-Book
  6. Hands-on labs
  7. 90+ Tests Questions (Qubits42)
You can also purchase an annual plan for USD 999. For one year, all Flexi Videos will be free for you. Buy Annual Plan

You will get access to Flexi Video within 30 minutes.

Flexi Video

USD 199

Official Course-Book Instructor Hand-outs



USD 59


USD 199

100% Refund for Flexi Video (Course-Book is non-refundable) if user is not satisfied with the Video and seeks refund within 30 days of purchase.

Download Course Contents
Module 1: The Linux Environment
  • The Origin of Linux
  • Files and File Systems
  • Directories
  • Inodes and Links
  • Pipe and Socket Files
  • Device Files
  • Lab Session
  • Command Basics
  • Command-Line Editing
  • Multiple Commands
  • Multiline Commands
  • Command History
  • Directory Commands
  • Basic file permissions
  • Lab Session
  • Listing Files
  • Getting Help
  • Fixing the Display
  • Working with Files
  • Working with People
  • Lab Session
  • What is a shell?
  • Types of shell
  • Shell features
  • Shell Aliases
  • Customizing Your Prompt
  • Built-In Versus Linux Commands
  • The Bash Hash Table
  • The Set and Shopt Commands
  • Key Binding
  • Lab Session
  • Which shell?
  • Recommended shell
  • Pseudo code before writing shell script
  • Creating a Script
  • Magic Sha−Bang
  • How to execute a script
  • Exit status
  • Shell Debugging Features
  • Lab Session
  • Introduction to Variables
  • Variable Assignment
  • Displaying and using variables
  • Variable Attributes
  • Quoting Variables
  • Escape Characters
  • The eval Command
  • Concatenation and sub-strings
  • Lab Session
  • Creating array Variable
  • Substituting and counting
  • Using integer variables as element numbers
  • Lab Session
  • Reading user input
  • Positional parameters
  • Creating positional parameters
  • Lab Session
  • Variable attributes
  • Formatted output with printf
  • Terminal echo
  • I/O Redirection
  • Pipe and tee
  • Lab Session
  • File descriptors
  • Reading / writing using file descriptors
  • Redirecting, parameter lists and 'here' documents
  • Creating parameter lists from input lines
  • Lab Session
  • Creating Integer Variables
  • Using arithmetic operators and data
  • Lab Session
  • Logic testing
  • Conditional operators
  • Multi-way branching and the 'case' statement
  • Lab Session
  • Basic expressions
  • Regular expressions
  • Meta-characters
  • Pattern combinations
  • Using Character Classes
  • The grep and egrep command
  • Lab Session
  • The 'while' loop
  • The 'until' loop
  • The 'for' loop
  • Breaking out of a loop and continuing
  • The 'select' loop
  • Lab Session
  • Processing arguments
  • The getopts and OPTARG variable
  • The OPTIND variable
  • Lab Session
  • Displaying current shell functions
  • Declaring and using functions
  • Variable scope
  • Function recursion
  • Lab Session
  • Common signals
  • Running Scripts in Background Mode
  • Scheduling your script
  • Starting the Script at Boot Time
  • The trap commands
  • Lab Session
  • Record processing
  • Pattern matching and relational expressions
  • Command line arguments
  • Lab Session
  • Substituting text
  • Deleting and printing lines
  • Reading and writing files
  • Multiple 'sed' editor functions
  • Lab Session
  • Creating Graphical Script
  • User Management Script
  • Directory Monitoring Script
  • User Login Monitoring Script
  • Email Report by Script



Red Hat:AD183 Red Hat Application Development I: Programming in Java EEKoenig Original:Advance DevOps Tools - Git, Ansible, Kubernetes on baremetal and Azure, CI/CD with Jenkins
Koenig Original:Advanced Docker Concepts and Container OrchestrationOpen Source:Advanced Kubernetes
Open Source:AKS with Basic Linux Fundamentals and DockerOpen Source:Ansible with windows administration
Open Source:Certified Jenkins EngineerLinux Foundation:Certified Kubernetes Security Specialist (CKS)
Open Source:CI/CD with Jenkins and GitLabRed Hat:Developing Advanced Automation with Red Hat Ansible Automation Platform
Red Hat:Developing Event-Driven Applications with Apache Kafka and Red Hat AMQ StreamsKoenig Original:DevOps Engineer - Beginners to Advance
Open Source:DevOps IntroductionOpen Source:DevOps Tools
Koenig Original:DevOps Tools - Git, CKAD, AKS, Jenkins and GitLabOpen Source:DevOps Tools for Beginners- Ansible, Terraform, Kubernetes on Azure, EKS
Red Hat:DO378 Red Hat Cloud-native Microservices Development with QuarkusOpen Source:ELK Master Class - Elasticsearch, Beats, Logstash and Kibana
Open Source:Git and JenkinsMicrosoft:GitHub Actions with Azure

Learn more about Koenig. Download Presentation Buy Other Flexi


6 months from the date of delivery.
Yes, you do. Flexi Videos do not include Course-Book or Labs.
Yes, contact us for corporate packages.
Yes, Course-Book and Lab are not included in the annual plan. All Flexi videos are included.
It is only for one user.
Videos can only be streamed and not downloaded.
We do not track the pass rate of Flexi students. However, we trust it will be lower than for Live Online.
Presently, Flexi is only available in English.
Yes, you can pay from this web page.
Yes, the site is secure by utilizing Secure Sockets Layer (SSL) Technology. SSL technology enables the encryption of sensitive information during online transactions. We use the highest assurance SSL/TLS certificate, which ensures that no unauthorized person can get to your sensitive payment data over the web.
We use the best standards in Internet security. Any data retained is not shared with third parties.
You will be provided access to LET ( Learning Enhancement Tool), where you will get the links to access all your purchases.
Flexi video for the new version will be provided free of cost.
It’s a unique subscription plan where customers can avail unlimited Flexi courses within a year.
The subscription plan is valid for 1 year from the date of purchase.
No, this is limited to one user and its non-transferable.

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