Write a program to copy the content from one file to another file.

Write a program to copy the content from one file to another file.

Rules to implement the above problem:

The input file should be named as "input.txt".

The output file should be named as "output.txt".

Sample Input file (input.txt):

Hello World!

Welcome to C Programming

Implementation of the above problem:

#include <stdio.h>

#include <stdlib.h> // For exit()

 int main()

{

FILE *fptr1, *fptr2;

char filename[100], c;

fptr1 = fopen("input.txt", "r");

if (fptr1 == NULL)

{

printf("Cannot open file %s \n", filename);

exit(0);

}

// Open another file for writing

fptr2 = fopen("output.txt", "w");

if (fptr2 == NULL)

{

printf("Cannot open file %s \n", filename);

exit(0);

}

// Read contents from file

c = fgetc(fptr1);

while (c != EOF)

{

fputc(c, fptr2);

c = fgetc(fptr1);

}

printf("\nContents copied to %s", filename);

fclose(fptr1);

fclose(fptr2);

return 0;

}

Output file (output.txt)

Hello World!

Welcome to C Programming

Thanks

Mukesh Rajput