Chapter - 13: File Input-Output

Write a program to copy one file to another. While doing so replace all lowercase characters to their equivalent uppercase characters.

File (d)1.txt

It is a remarkable dichotomy. In many ways, Clark is the most human of us all. Then... he shoots fire from the skies and it is difficult not to think of him as a god. And how fortunate we all are that it does not occur to him.
-- Batman

int main()
	char str[50];
	FILE *f1, *f2;
	f1 = fopen("File (d)1.txt", "r");
	f2 = fopen("File (d)2.txt", "w");
	while (fgets(str, 49, f1) != NULL)
		fputs(str, f2);
	return 0;

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