This C Program creates a file & store information. We frequently use files for storing information which can be processed by our programs. In order to store information permanently and retrieve it we need to use files and this program demostrate file creation and writing data in that.
Here is source code of the C program to create a file & store information.The C program is successfully compiled and run on a Linux system. The program output is also shown below.

/*
* C program to create a file called emp.rec and store information
* about a person, in terms of his name, age and salary.
*/
#include <stdio.h>

void main()
{
FILE *fptr;
char name[20];
int age;
float salary;

/* open for writing */
fptr = fopen("emp.rec", "w");

if (fptr == NULL)
{
printf("File does not exists \n");
return;
}
printf("Enter the name \n");
scanf("%s", name);
fprintf(fptr, "Name = %s\n", name);
printf("Enter the age\n");
scanf("%d", &age);
fprintf(fptr, "Age = %d\n", age);
printf("Enter the salary\n");
scanf("%f", &salary);
fprintf(fptr, "Salary = %.2f\n", salary);
fclose(fptr);
}

$ cc pgm95.c
$ a.out
Enter the name
raj
Enter the age
40
Enter the salary
4000000