Variables, If/Else & Loops in Bash – Your Script Starts Making Decisions (Ch.2)

🧠 Bash for Offensive Security — Chapter 2: Logic & Intelligence In Chapter 1 we learned to navigate, create scripts and set permissions. Now it's time to make those scripts actually think. Chapter 2 covers variables, user input, if/else conditionals, loops — the building blocks of every real-world Bash tool used in offensive security. ✅ What you'll learn: • Variables in Bash — rules, conventions, and how to use them • Taking user input with read and the -p flag • if / elif / else conditionals with real offensive security examples • Useful conditionals: -d, -f, -z, -gt, -lt flags explained • exit codes and the exit command • for loops with ranges and lists • while loops with countdown examples • Exercise 2: age_verifier.sh — input validation script • Exercise 3: factory.sh — automated log file generator 🔧 Tools used: Bash, nano, Ubuntu Terminal ⚠️ DISCLAIMER: Educational and ethical hacking purposes only. #BashScripting #BashLoops #IfElseBash #OffensiveSecurity #EthicalHacking #LinuxForHackers #BashVariables #CyberSecurityTutorial #BashConditionals #HackingForBeginners