$3.$ Please write a bourne shell script that asks the user for a score. If the score is between $90$ and $100,$ then print $$you got A$,$ else if between $80$ and $90,$ then $$you got B$$ and so on$.$ If less than $60,$ then $$you failed$.$ If the user enters number not between $0$ and $100,$ then print the error message and exit the script. Modify this script such that the user runs it with a number between $0$ and $100$ as an argument to the script and not ask the user for the score.