Question

NEW YORK CITY COLLEGE OF TECHNOLOGY THE CITY UNIVERSITY OF NEW YORK Department of Computer Engineering Technology 300 Jay Street, Brooklyn, NY 11201-1909 EMT 2390L - Lab 6 Instructions: Create a new script and name it lab6. Include the following in your script: 1- A global variable named course with "EMT 2390L" assigned to it as default value. 2- A global variable named score that will store a number between 0 and 100. 3. A global variable numGrades that will store the number of grades to process 4- A function gerScore that will a. Ask the user to enter a score and store it in the variable score. b. Using a loop, validate that the value entered is between 0 and 100. If the value is not between 0 and 100, keep asking the user until a valid value is entered, 5- A function displayGrade that will read the value of the global variable score and using a case statement will display the message "Your grade for YOUR COURSE is B+" according to the following scale: A 93 - 100 A 90-92 B+ 87-89 B 83-86 B- 80 - 82 C+ 77-79 C 70 - 76 D 60-69 F 0 - 59 6- In the body of the script a. Display the text "Enter the number of grades to process". b. Read the input from the user and store it in the variable numGrades. c. Use a for loop that will execute as many times as the numGrades variable indicates. The body of the loop will first invoke gerScore followed by displayGrade. 7- Show the script running and the results to the professor. This is an in-class lab due at the end of the class.

using linux terminal

Answer 1

Script is as follows:

************************************************************************************************************************************

#!/bin/sh

#getScore Function
getScore(){
   printf "\nEnter a score : " #prompt for score
   read score #read the score
   while [ $score -lt 0 ] || [ $score -gt 100 ] #while score is less than 0 or greater than 100
   do
       echo "Score should be between 0 and 100 only" #show the message
       printf "Enter a score:" #ask score again
       read score #read score upto which the condition is unsatisfied
   done
}

#display grade Functions
displayGrade(){
   printf "Enter the course name : " #prompt for course name
   read course #read the course name
   #case statements for grade check and print  
   case $score in
       100) echo "Your grade for $course is A" ;;
       9[3-9]) echo "Your grade for $course is A" ;;
       9[0-2]) echo "Your grade for $course is A-" ;;
       8[7-9]) echo "Your grade for $course is B+" ;;
       8[3-6]) echo "Your grade for $course is B" ;;
       8[0-2]) echo "Your grade for $course is B-" ;;
       7[7-9]) echo "Your grade for $course is C+" ;;
       7[0-6]) echo "Your grade for $course is C" ;;
       6[0-9]) echo "Your grade for $course is D" ;;
       *) echo "Your grade for $course is F" ;;
   esac
  
}

course="EMT2390L" #course variable assigned to EMT2390L
declare -i score #declare a score varible
declare -i numGrades #declare numGrades variable
printf "\nEnter the number of grades to process : " #prompt for umber of grades to process
read numGrades #get the number of grades
for i in $(seq 1 $numGrades); #for loop for number of grades
do
   getScore #call getscore
   displayGrade   #call displayGrade
done
printf "\n"

************************************************************************************************************************************

Screenshot of the code:

Activities Text Editor Thu 20:20 A wer.sh -/Desktop Save 3 - 0 Open - #!/bin/sh X #getScore Function getScore({ printf "\nEnter a score : " #prompt for score read score #read the score while [ $score -lt o ] [ $score -gt 100 ] #while score is less than 0 or greater than 100 do echo "Score should be between 0 and 100 only" #show the message printf "Enter a score: #ask score again read score #read score upto which the condition is unsatisfied done #display grade Functions displayGrade() { printf "Enter the course name : " #prompt for course name read course #read the course name #case statements for grade check and print case $score in 100) echo "Your grade for $course is A" ;; 9[3-9]) echo "Your grade for $course is A" ;; 9[0-2]) echo "Your grade for $course is A-" ;; 8[7-9]) echo "Your grade for $course is B+" ;; 8[3-6]) echo "Your grade for $course is B" ;; 8[0-2]) echo "Your grade for $course is B-" ;; 7[7-9]) echo "Your grade for $course is C+" ;; 7[0-6]) echo "Your grade for $course is C" ;; 6[0-9]) echo "Your grade for $course is D" ;; *) echo "Your grade for $course is F" ;; esac course="EMT2390L" #course variable assigned to EMT2390L declare -i score #declare a score varible declare -i numGrades #declare numGrades variable printf "\nEnter the number of grades to process : " #prompt for umber of grades to process read numGrades #get the number of grades for i in $(seq 1 $numGrades); #for loop for number of grades do getScore #call getscore displayGrade #call displayGrade done printf "\n" - stsee is het the number one reales variab sh Tab Width: 8 Ln 45, Col 43 INS

Output:

aakash@aakash-HP-Notebook :-/Desktop bash wer.sh Enter the number of grades to process : 5 Enter a score : 95 Enter the course name : Maths Your grade for Maths is A Enter a score : 92 Enter the course name : C++ Your grade for C++ is A- Enter a score : 88 Enter the course name : EMT222 Your grade for EMT222 is B+ Enter a score : 81 Enter the course name : EMT555 Your grade for EMT555 is B- Enter a score : 55 Enter the course name : EMT78^ Your grade for EMT78^ is F aakash@aakash-HP-Notebook :-/Desktops