final_project.sh

#! /bin/bash
if [ "$NUM" -lt 5 ]; then
    echo "The number is less than 5"
elif [ "$NUM" -lt 10 ]; then
    echo "The number is between 5-9"
elif [ "$NUM" -lt 21 ]; then
    echo "The number is between 10-20"
else
    echo "The number is greater than 20"
fi