Certainly! Here’s a simple shell script that prompts the user to enter two numbers and then calculates their sum:

#!/bin/bash

# Prompt the user to enter the first number
read -p "Enter the first number: " num1

# Prompt the user to enter the second number
read -p "Enter the second number: " num2

# Calculate the sum
sum=$((num1 + num2))

# Display the result
echo "Sum of $num1 and $num2 is: $sum"

Save this script to a file (e.g., calculate_sum.sh), make it executable using chmod +x calculate_sum.sh, and then run it:

./calculate_sum.sh

The script will prompt you to enter two numbers, and then it will calculate and display their sum.