run

@@ -1,9 +1,6 @@
 #!/bin/bash
 
-# echo "compile the program.c file..."
-# gcc work1/main.c -o program
-# echo "run the program..."
-# ./program
-
-gcc work1/single.c -o single
-./single
+echo "compile the program.c file..."
+gcc work1/main.c -o program
+echo "run the program..."
+./program

work1/single.c

@@ -1,57 +1,34 @@
 #include "stdio.h"
 #include "stdlib.h"
 
-struct person_tag
-{
+struct person_tag {
     char name[20];
     char id[10];
 };
 
-struct course_tag
-{
+struct course_tag {
     char course_name[20];
     int no_of_units;
     int marks[4];
     float avg;
 };
 
-struct student_tag
-{
+struct student_tag {
     struct person_tag student_info;
     struct course_tag course_info;
     struct student_tag *next;
-};
+}
 
-// core functions
-void display_students();
-void search_student();
-void find_maximum();
-void find_failed();
+void display_students(void);
+void search_student(void);
+void find_maximum(void);
+void find_failed(void);
 void update_file();
 void read_file();
 void quite();
 
-// util functions
-void display_menu();
+int main(void) {
+    printf("Welcome!");
 
-int main(void)
-{
-    // varibales
-    int selected;
-
-    printf("Welcome!\n");
-
-    display_menu();
-
-    printf("\nGoodbye!");
-}
-
-void display_menu()
-{
-    printf("(1) Display students’ details\n");
-    printf("(2) Search for a student’s mark\n");
-    printf("(3) Find the details of student with the largest average\n");
-    printf("(4) Find the details of failed students\n");
-    printf("(5) Add new student to the record\n");
-    printf("(6) Quit program\n");
+    printf("Goodbye!");
 }