diff --git a/History.txt b/History.txt
new file mode 100644
index 0000000..92667c7
--- /dev/null
+++ b/History.txt
@@ -0,0 +1,32 @@
+# Linux tutorial
+
+## Basic Commands:
+
+```
+
+s
+ls -l 
+clear 
+pwd
+ls
+cd Desktop/
+ls
+ll
+pwd 
+cd /home/varunmanikoutlo/
+pwd 
+ll
+ls -l
+ll
+ls -la
+ls -lar
+ls -lart
+ls -larth
+cd /home/varunmanikoutlo/
+pwd 
+cd Desktop/
+cd ../
+history 
+history | cut -c 8- 
+
+```
diff --git a/README.md b/README.md
index d75f935..265bdaf 100644
--- a/README.md
+++ b/README.md
@@ -1,121 +1,133 @@
-# DevOps-Tutorial
-DevOps-Tutorial
-# Caltech-DevOps Simplilearn PG Program
 
-This repository contains course materials for the Caltech-DevOps Simplilearn Postgraduate Program.
+# Linux Basic Commands
 
-## Course Contents
+This README file provides a brief introduction to some essential Linux commands for beginners.
 
-1. **Course Introduction**
-   - Overview of the program
-   - Objectives and outcomes
+## Table of Contents
+1. [Navigating the File System](#navigating-the-file-system)
+2. [File Management](#file-management)
+3. [Directory Management](#directory-management)
+4. [Permissions](#permissions)
+5. [Viewing File Contents](#viewing-file-contents)
+6. [System Information](#system-information)
 
-2. **Basic Linux**
-   - Introduction to Linux
-   - File system and basic commands
-   - Shell scripting
+### Navigating the File System
 
-3. **Introduction to DevOps**
-   - DevOps concepts and principles
-   - DevOps practices and tools
+- To print the current working directory:
 
-4. **Version Control System**
-   - Introduction to Git
-   - Git workflow
-   - Branching and merging strategies
+  ```
+  pwd
+  ```
 
-5. **CI/CD Pipeline with Jenkins**
-   - Introduction to Jenkins
-   - Configuring and managing Jenkins
-   - Building and deploying pipelines
+- To change the current working directory:
 
-6. **Configuration Management with Ansible**
-   - Introduction to Ansible
-   - Writing Ansible playbooks
-   - Ansible roles and best practices
+  ```
+  cd [directory]
+  ```
 
-7. **Infrastructure as Code with Terraform**
-   - Introduction to Terraform
-   - Writing Terraform configurations
-   - Terraform modules and best practices
+- To list the contents of a directory:
 
-8. **Containerization with Docker**
-   - Introduction to Docker
-   - Dockerfile and Docker Compose
-   - Docker networking and storage
+  ```
+  ls [options] [directory]
+  ```
 
-9. **Container Orchestration with Kubernetes**
-   - Introduction to Kubernetes
-   - Kubernetes objects and resources
-   - Kubernetes networking and storage
+### File Management
 
-10. **Continuous Monitoring**
-    - Introduction to monitoring
-    - Monitoring tools and techniques
-    - Integrating monitoring with CI/CD pipelines
+- To create a new file:
 
-11. **Centralized Notification System**
-    - Introduction to centralized notifications
-    - Notification tools and techniques
-    - Integrating notifications with CI/CD pipelines
+  ```
+  touch [file]
+  ```
 
-12. **AWS Cloud**
-    - Introduction to AWS
-    - AWS services and best practices
-    - Deploying and managing applications on AWS
+- To copy a file:
 
-13. **Real-Time Project**
-    - Working with Java, Maven, and Tomcat
-    - Building a complete CI/CD pipeline
-    - Applying DevOps principles and practices
+  ```
+  cp [source] [destination]
+  ```
 
----------------------------------------------------------------------------------------------------
-## How to Use This Repository
+- To move a file:
 
-This repository contains course materials, example projects, and code snippets. Use it as a reference while working through the Caltech-DevOps Simplilearn Postgraduate Program.
+  ```
+  mv [source] [destination]
+  ```
 
+- To remove a file:
 
+  ```
+  rm [file]
+  ```
 
-# Getting Started
+### Directory Management
 
-To get started, you will need to clone the repository to your local machine. Follow the instructions below:
+- To create a new directory:
 
-1. Open a terminal or Git Bash.
-2. Navigate to the directory where you want to clone the repository.
-3. Run the following command to clone the repository:
+  ```
+  mkdir [directory]
+  ```
 
-```
-git clone git@github.com:manikcloud/devops-project.git
-```
+- To remove an empty directory:
 
-4. Change into the cloned repository directory:
-```
-cd devops-project
-```
+  ```
+  rmdir [directory]
+  ```
 
+- To remove a non-empty directory:
 
-You have now successfully cloned the repository to your local machine. You can start working on the project and use Git to track your changes.
+  ```
+  rm -r [directory]
+  ```
 
-## Contributing to the Project
+### Permissions
 
-Before making any changes, create a new branch based on the master branch. This will help keep the master branch clean and make it easier to collaborate with others.
+- To change file or directory permissions:
 
-1. Ensure you are in the `devops-project` directory.
-2. Run the following command to create a new branch:
+  ```
+  chmod [permissions] [file or directory]
+  ```
 
-```
-git checkout -b your_branch_name
-```
-3. Make your changes, commit them, and push them to the remote repository:
-```
-git add .
-git commit -m "Your commit message"
-git push origin your_branch_name
-```
+- To change file or directory ownership:
+
+  ```
+  chown [owner] [file or directory]
+  ```
+
+### Viewing File Contents
 
+- To display the contents of a file:
 
-When you are ready to merge your changes with the master branch, create a pull request on GitHub. This will allow others to review your changes before merging them.
+  ```
+  cat [file]
+  ```
 
-Remember to always keep your local repository up to date by fetching and merging changes from the remote repository.
+- To display the first few lines of a file:
 
-Happy coding!
+  ```
+  head [file]
+  ```
+
+- To display the last few lines of a file:
+
+  ```
+  tail [file]
+  ```
+
+### System Information
+
+- To display system information:
+
+  ```
+  uname -a
+  ```
+
+- To display disk usage:
+
+  ```
+  df -h
+  ```
+
+- To display memory usage:
+
+  ```
+  free -h
+  ```
+```