Skill Topic · Cinematic

📘 Bash — Shell Scripting Basics

Bash scripting shuru karo — automation ka pehla step! 📜⚡

Overview

📘 Bash — Shell Scripting Basics — Quick Facts

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Variable: Kya Karta

🎯

`$HOME`: Home directory

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`$USER`: Current username

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`$PWD`: Current directory

Topic 1

🎯 Real-World Analogy — Recipe Book!

📚 📖 Script = Recipe Book! Socho ek cooking recipe book: - Script = Ek poori recipe —…

Topic 2

📌 1. First Script — Hello World!

💡 🚀 Pehla kadam — scripting me "Hello World" likho! `bash #!/bin/bash Mera pehla Bash…

Topic 3

📌 2. Shebang (#!) — Script Ka Interpreter

🎯 🏷️ Shebang = Script ki pehli line — OS ko batao kaunsa interpreter use kare! `bash…

Topic 4

📌 3. Variables — Data Store Karo!

⭐ 📦 Variable = Ek dabba jisme value rakhi hai — naam do, value do, use karo! `bash…

Topic 5

📌 4. Quoting Rules — Single vs Double!

🔑 🔤 Quotes = Variable expand hoga ya nahi — yeh decide karte hain! `mermaid graph TD…

Topic 6

📌 5. User Input (read) — Puchho Aur Lo!

✨ ⌨️ read = User se input lo — naam, password, choice, kuch bhi! `bash #!/usr/bin/env bash…

Topic 7

📌 6. Echo & Printf — Output Dikhaao!

🌟 🖨️ echo = simple print, printf = formatted print — dono seekho! `bash #!/usr/bin/env bash…

Topic 8

📌 7. Exit Codes — Success Ya Failure?

🚀 🚪 Exit code = har command batata hai: "Kaam hua ya nahi?" `mermaid graph TD A["Command…

Topic 9

📌 8. Command Substitution — Output Capture!

📚 🔄 Command ka output variable me store karo — $() se! `bash #!/usr/bin/env bash…

Topic 10

📌 9. Arithmetic — Math Karo!

💡 🔢 Bash me calculations — $(( )) se integer math, bc se float! `bash #!/usr/bin/env bash…

Topic 11

📌 10. Script Template — Professional Script!

🎯 📋 Har script aise likho — organized, safe, professional! `bash #!/usr/bin/env bash…

Topic 12

📌 11. Common Mistakes & Solutions

Topic 13

📌 12. Practice Exercises

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Hostname, OS, Kernel version

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CPU cores, load average

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RAM total/used/free

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Disk usage (/ partition)

Topic 14

✅ Summary

✨ 📜 Scripting basics ka poora toolkit — ek nazar me! | Concept | Key Point |…

Comparison

📌 4. Quoting Rules — Single vs Double!

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Double: "..."

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Single: '...'

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None: bare

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Diagram

Visual Flow

📊 Diagram visualization — details in narration

Quick Quiz

Quiz — Question 1

📘 Bash — Shell Scripting Basics ka sabse sahi definition kya hai?

Quick Quiz

Quiz — Question 2

📘 Bash — Shell Scripting Basics ka '$HOME' kya hai?

Complete! 🎉

📘 Bash — Shell Scripting Basics Complete!

Aliens School · HIEN · Cinematic Knowledge

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