#include <stdio.h>

void filecopy(FILE *fp1, FILE *fp2)
{
	char c;
	while ((c = getc(fp1)) != EOF)	// when file ends, EOF is read
		putc(c, fp2);
}

int main(int argc, char *argv[])
{
	FILE *fp1, *fp2;

	if (argc != 3)	// error handling
	{
		printf("Program requires two file arguments\n");
		return -1;	// if error, terminate
	}

	fp1 = fopen(argv[1], "r");	// directly using
	fp2 = fopen(argv[2], "w");	// arguments as filenames

	filecopy(fp1, fp2);

	fclose(fp1);
	fclose(fp2);
}