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You're writing a Bash script that should repeatedly prompt the user for input until they enter "quit" to exit. Which code snippet correctly implements this behavior using a while loop?1.0 Markswhile [ "$input" != "quit" ]; doread -p "Enter a value: " inputdonewhile [ "$input" != "quit" ]; doread -p "Enter a value (type 'quit' to exit): " inputdonewhile [ "$input" != "quit" ]; doread -p "Enter a value (type 'exit' to quit): " inputdonewhile read -p "Enter a value (type 'quit' to exit): " input; doif [ "$input" == "quit" ]; thenbreakfidonewhile true; doread -p "Enter a value (type 'quit' to exit): " inputif [ "$input" == "quit" ]; thenbreakfidone

Question

You're writing a Bash script that should repeatedly prompt the user for input until they enter "quit" to exit. Which code snippet correctly implements this behavior using a while loop?1.0 Markswhile [ "input"!="quit"];doreadp"Enteravalue:"inputdonewhile["input" != "quit" ]; doread -p "Enter a value: " inputdonewhile [ "input" != "quit" ]; doread -p "Enter a value (type 'quit' to exit): " inputdonewhile [ "input"!="quit"];doreadp"Enteravalue(typeexittoquit):"inputdonewhilereadp"Enteravalue(typequittoexit):"input;doif["input" != "quit" ]; doread -p "Enter a value (type 'exit' to quit): " inputdonewhile read -p "Enter a value (type 'quit' to exit): " input; doif [ "input" == "quit" ]; thenbreakfidonewhile true; doread -p "Enter a value (type 'quit' to exit): " inputif [ "$input" == "quit" ]; thenbreakfidone

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Solution

The correct code snippet that implements this behavior using a while loop is:

while true; do
read -p "Enter a value (type 'quit' to exit): " input
if [ "$input" == "quit" ]; then
break
fi
done

This script will continuously prompt the user to enter a value until they type 'quit'. The 'true' in the while loop condition makes the loop run indefinitely until 'break' is encountered. When the user types 'quit', the if condition becomes true and 'break' is executed, which terminates the loop.

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Similar Questions

You're developing a Bash script that reads lines from a text file. If a line contains the word "error," the script should display an error message and continue reading the next line. If a line contains the word "success," it should display a success message and break out of the loop. For all other lines, it should display a generic message. Which code snippet correctly implements this behavior using a while loop?1.0 Markswhile read -r line; doif [[ "$line" == *"error"* ]]; thenecho "Error: $line"elif [[ "$line" == *"success"* ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile IFS= read -r line; doif [[ "$line" =~ "error" ]]; thenecho "Error: $line"elif [[ "$line" =~ "success" ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile read -r line; doif [[ "$line" =~ "error" ]]; thenecho "Error: $line"elif [[ "$line" =~ "success" ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtwhile IFS= read -r line; doif [[ "$line" == *error* ]]; thenecho "Error: $line"elif [[ "$line" == *success* ]]; thenecho "Success: $line"breakelseecho "Info: $line"fidone < file.txtPowered by Fedena

Write a program to show how to stop while loops

ou're working on a Bash script that needs to validate user input for a password. The script should check if the password meets certain criteria: it should be at least 8 characters long, contain both uppercase and lowercase letters, and include at least one number. Which code snippet correctly implements this password validation using a while loop?0.5 Markswhile true; doread -sp "Enter password: " passwordif [[ ${#password} -lt 8 || ! "$password" =~ [a-z] || ! "$password" =~ [A-Z] || ! "$password" =~ [0-9] ]]; thenecho "Invalid password. Please try again."elseecho "Password is valid."breakfidonewhile true; doread -sp "Enter password: " passwordif [[ ${#password} < 8 || ! "$password" =~ [a-z] || ! "$password" =~ [A-Z] || ! "$password" =~ [0-9] ]]; thenecho "Invalid password. Please try again."elseecho "Password is valid."breakfidonewhile true; doread -sp "Enter password: " passwordif [[ ${#password} -lt 8 || ! "$password" =~ [[:lower:]] || ! "$password" =~ [[:upper:]] || ! "$password" =~ [0-9] ]]; thenecho "Invalid password. Please try again."elseecho "Password is valid."breakfidonewhile true; doread -sp "Enter password: " passwordif [[ ${#password} -lt 8 || ! "$password" =~ [a-zA-Z] || ! "$password" =~ [0-9] ]]; thenecho "Invalid password. Please try again."elseecho "Password is valid."breakfidonewhile true; doread -sp "Enter password: " passwordif [[ ${#password} < 8 || ! "$password" =~ [[:lower:]] || ! "$password" =~ [[:upper:]] || ! "$password" =~ [[:digit:]] ]]; thenecho "Invalid password. Please try again."elseecho "Password is valid."breakfidone

The break statement in a while loop would be used to do what?a.)Exit the loop.b.)Reset the loop.c.)Go back to the beginning of the loop.d.)Enter the loop.

What does the continue statement do in a loop?Terminates the loopSkips the rest of the loop iterationExits the programRestarts the loop

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