--- title: "Aditya Tiwary (@aditya86) | Hashnode" description: "Eat Sleep Code Repeat. Read the latest articles by Aditya Tiwary on Hashnode." url: "https://hashnode.com/@aditya86" --- @aditya86 # Aditya Tiwary @aditya86 · bangalore,india · Joined July 2025 Eat Sleep Code Repeat ### [Day 7-13 Optimization of Docker Image](https://100sdaysofdevops.hashnode.dev/day-7-13-optimization-of-docker-image?utm_source=hashnode&utm_medium=feed) Optimizing a Dockerfile is crucial for improving build speed, image size, and container performance. Here’s a breakdown of various steps to optimize your Dockerfile: 🧱 1. Use Multi-Stage Builds Purpose: Reduce final image size by separating build a... 2 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day-7-13-optimization-of-docker-image?utm_source=hashnode&utm_medium=feed) [Jul 29, 2025](https://hashnode.com/posts/day-7-13-optimization-of-docker-image/68890cf723691b688763fadf) ### [Day 6:Virtual Machine & Containerization(Docker Beginning)](https://100sdaysofdevops.hashnode.dev/day-6virtual-machine-and-containerizationdocker-beginning?utm_source=hashnode&utm_medium=feed) ✅ What is a VM (Virtual Machine)? A Virtual Machine is a software-based simulation of a physical computer. It runs on a hypervisor like VMware, VirtualBox, or KVM, which sits on top of the host OS or hardware. Each VM has its own OS, libraries, and ... 5 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day-6virtual-machine-and-containerizationdocker-beginning?utm_source=hashnode&utm_medium=feed) [Jul 23, 2025](https://hashnode.com/posts/day-6virtual-machine-and-containerizationdocker-beginning/68812954ab2f41f8af66c1b1) ### [Day 5:Error Handling in Shell Scripting and Git Basics Revision](https://100sdaysofdevops.hashnode.dev/day-5error-handling-in-shell-scripting-and-git-basics-revision?utm_source=hashnode&utm_medium=feed) . 🟣 Error Handling in Shell Scripting — A Practical Guide 🚀 📚 Learning Objectives Creating reliable and professional Bash scripts requires solid error-handling skills. In this guide, you'll learn: How to handle errors effectively in Bash scripts... 4 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day-5error-handling-in-shell-scripting-and-git-basics-revision?utm_source=hashnode&utm_medium=feed) [Jul 22, 2025](https://hashnode.com/posts/day-5error-handling-in-shell-scripting-and-git-basics-revision/687fcb4ba7c7077ed1c8ea0a) ### [Day 4:Shell Scripting Interview Questions](https://100sdaysofdevops.hashnode.dev/day-4shell-scripting-interview-questions?utm_source=hashnode&utm_medium=feed) :Basic Shell Scripting Questions 1. What is a shell? What is shell scripting?A shell is a command-line interpreter that provides a user interface for the Unix/Linux operating system. Shell scripting is writing a series of command-line instructions in... 5 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day-4shell-scripting-interview-questions?utm_source=hashnode&utm_medium=feed) [Jul 21, 2025](https://hashnode.com/posts/day-4shell-scripting-interview-questions/687e7958de7536bd781f4085) ### [Day 3:Shell Scripting](https://100sdaysofdevops.hashnode.dev/day-3shell-scripting?utm_source=hashnode&utm_medium=feed) 🚦 1. Analyzing Node Health A core DevOps script often checks CPU, memory, disk usage, and running processes to ensure “node health.” A sample snippet: bashCopyEdit#!/bin/bash set -x set -e set -o pipefail # Check disk space df -h | grep '/$' # Che... 3 min read · [100sdaysofdevops.hashnode.dev](https://100sdaysofdevops.hashnode.dev/day-3shell-scripting?utm_source=hashnode&utm_medium=feed) [Jul 20, 2025](https://hashnode.com/posts/day-3shell-scripting/687d2c4e41ec2b02c104833f)