GTU OS Program - 3

3. Write a shell script to generate marksheet of a student. Take 3 subjects, calculate and display total marks, percentage and Class obtained by the student.

Make a file called marksheet.sh using vim. If you want a full guide to vim than you can check this post. 

tkanu025@hp:~/lab_solutions$ vim marksheet.sh

When you will hit enter than it will open a window like the one below. This is an editor and Here you can write your code. Press i to enter into the insert mode

Gujarat Technological university OS programs cse gtu

Write full code there like this

  1. echo "Enter marks(out of 30) of "
  2. read -p "Subject 1: " s1
  3. read -p "Subject 2: " s2
  4. read -p "Subject 3: " s3
  5. sum=`expr $s1 + $s2 + $s3`
  6. echo "Sum of marks of 3 subjects is : "$sum
  7. per=`expr $sum \* 10 / 9`
  8. echo "Percentage: "$per
  9. if [ $per -ge 60 ]
  10. then
  11.         echo "you got Distinction"
  12. elif [ $per -ge 50 ]
  13. then
  14.         echo "you got First class"
  15. elif [ $per -ge 40 ]
  16. then
  17.         echo "You got second class"
  18. else
  19.         echo "sorry you failed! better luck next time"
  20. fi

Then press ESC and then Enter :wq which will bring you out of the vim editor writing that code into your marksheet.sh file.

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Now compile and run the created file.

tkanu025@hp:~/lab_solutions$ chmod +x marksheet.sh
tkanu025@hp:~/lab_solutions$ ./marksheet.sh

Here is the Output of this program

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Operating system shellscript programs,

Gtu study material 3140705,

OS 3140702,

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