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Are you preparing for IT campus placements and want to learn how to make your Linux scripts interactive? In this crucial DevOps tutorial, we master the Bash `read` command—and uncover exactly why senior DevOps engineers try to avoid it!
We start by teaching you how to pause script execution to accept user keystrokes and store them dynamically into variables. You will learn how to streamline your code using the `-p` (Prompt) flag to ask for input on a single line, and how to securely capture sensitive data using the `-s` (Silent) flag to hide passwords from the terminal screen.
Most importantly, we cover a massive DevOps Best Practice Warning: Why interactive scripts break automated CI/CD pipelines, and why passing Command Line Arguments (`$1`, `$2`) is the preferred method for modern infrastructure automation.
Topics Covered in this Video:
* The Concept of User Input: Pausing scripts to accept keyboard data.
* Basic Syntax: Using `echo` combined with the `read` command.
* Advanced Flags: Streamlining with `read -p` (Prompt) and securing with `read -s` (Silent).
* Security Warning: Why you should never `echo` a password captured with `-s`.
* DevOps Best Practice: Why CI/CD automation prefers Arguments/Environment Variables over interactive prompts.
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