Write a c program to copy & count the character content of one file says a.txt to another file b.txt.

Dr. A.P.J. Abdul Kalam Technical University, Lucknow

KCS151 / KCS251 Programming for Problem Solving - Using C Language

Lab Exercises

37. Write a c program to copy & count the character content of one file says a.txt to another file b.txt.

/*

 File: Prgrm37.c

 Author: Aditya Saini

 Date: Jan 20, 2021

 Description: Program to copy & count the character content of one file says a.txt to another file b.txt.

*/

#include <stdio.h>

int main (void)

{

     FILE *f_ptr_1, *f_ptr_2;

     char path_1[256], path_2[256];

     char ch;

     int no_of_char;

     //Input first file path

     printf ("Input first file path: ");

     fflush (stdin);

     gets(path_1);

     //Open first file

     f_ptr_1 = fopen (path_1, "r");

     if (f_ptr_1 == NULL)

     {

          printf ("Error! Unable to open first file.");

          return 0;

     }

     //Input second file path

     printf ("Input second file path: ");

     fflush (stdin);

     gets(path_2);

     //Open second file

     f_ptr_2 = fopen (path_2, "w");

     if (f_ptr_2 == NULL)

     {

          printf ("Error! Unable to open second file.");

          return 0;

     }

     //Copy & count

     no_of_char = 0;

     ch = fgetc (f_ptr_1);

     while (ch != EOF)

     {

          fputc (ch, f_ptr_2);

          ch = fgetc(f_ptr_1);

          no_of_char++;

     }

     printf ("\n%d no of characters copied from %s to %s", no_of_char, path_1, path_2);

     //Close files

     fclose (f_ptr_1);

     fclose (f_ptr_2);

     return 0;

};