three_numbers.sh

#!/bin/bash

# Prompt the user to enter three numbers
read -p "Enter the first number: " num1
read -p "Enter the second number: " num2
read -p "Enter the third number: " num3

# Check if all three numbers are equal
if [ "$num1" -eq "$num2" ] && [ "$num2" -eq "$num3" ]; then
    echo "All three numbers are equal."

# Check if the first number is the largest
elif [ "$num1" -ge "$num2" ] && [ "$num1" -ge "$num3" ]; then
    echo "The largest number is: $num1"

# Check if the second number is the largest
elif [ "$num2" -ge "$num1" ] && [ "$num2" -ge "$num3" ]; then
    echo "The largest number is: $num2"

# Otherwise, the third number is the largest
else
    echo "The largest number is: $num3"
fi

# Check if any two numbers are equal
if [ "$num1" -eq "$num2" ] || [ "$num1" -eq "$num3" ] || [ "$num2" -eq "$num3" ]; then
    echo "At least two numbers are equal."
fi