Why input makes scripts interactive in Bash Scripting - See It in Action

Why input makes scripts interactive

📖 Scenario: Imagine you want to create a simple script that asks a user for their name and then greets them. This shows how scripts can interact with people by asking questions and using their answers.

🎯 Goal: Build a bash script that asks for the user's name, stores it, and then prints a greeting using that name.

📋 What You'll Learn

Use the read command to get user input

Store the input in a variable called name

Print a greeting message using the echo command and the name variable

💡 Why This Matters

🌍 Real World

Many scripts ask users for information like names, passwords, or choices to work correctly.

💼 Career

Understanding how to get user input is key for writing interactive scripts used in automation, system setup, and user tools.

1

Create a variable to hold the user's name

Create a variable called name and set it to an empty string.

Bash Scripting

name=""
# Your code here

Need a hint?

Use name="" to create an empty variable.

2

Ask the user to enter their name

Use the read command with the variable name to get input from the user with the prompt "Enter your name:".

Bash Scripting

name=""
echo "Enter your name:"
read name
# Your code here

Need a hint?

Use echo to show the prompt, then read name to get input.

3

Create a greeting message using the input

Use the echo command to print the message "Hello, " followed by the value of the variable name.

Bash Scripting

name=""
echo "Enter your name:"
read name
echo "Hello, $name"
# Your code here

Need a hint?

Use echo "Hello, $name" to greet the user.

4

Run the script to see the interactive greeting

Run the script and enter the name Alex when prompted. The script should print Hello, Alex.

Bash Scripting

# Run the script and observe the output

Need a hint?

Type Alex when the script asks for your name.