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

🧠 Bash for Offensive Security β€” 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 β€” the building blocks of every real-world Bash tool used in offensive security.

βœ… What you’ll learn:
β€’ Variables in Bash β€” rules, conventions, and how to use them
β€’ Taking user input with read and the -p flag
β€’ if / elif / else conditionals with real offensive security examples
β€’ Useful conditionals: -d, -f, -z, -gt, -lt flags explained
β€’ exit codes and the exit command
β€’ for loops with ranges and lists
β€’ while loops with countdown examples
β€’ Exercise 2: age_verifier.sh β€” input validation script
β€’ Exercise 3: factory.sh β€” automated log file generator

πŸ”§ Tools used: Bash, nano, Ubuntu Terminal

⚠️ DISCLAIMER: Educational and ethical hacking purposes only.

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