The read command is used to take input from the user.
Reading a single input value:
echo "Enter your name:"
read NAME
echo "Hello, $NAME!"
Output after entering "Alice":
Enter your name:
Alice
Hello, Alice!
Reading multiple input values:
echo "Enter your first name and last name:"
read FIRST_NAME LAST_NAME
echo "Hello, $FIRST_NAME $LAST_NAME!"
Output after entering "Alice Smith":
Enter your first name and last name:
Alice Smith
Hello, Alice Smith!
Using a prompt with the -p option:
read -p "Enter your age: " AGE
echo "You are $AGE years old."
Output after entering "30":
Enter your age: 30
You are 30 years old.