#include <unistd.h>
#include <fcntl.h>
#include <stdio.h>

int main(int argc, char *argv[]){

        //int fd1 = open(argv[1],O_RDONLY);
        //int fd2 = open(argv[2],O_WRONLY|O_CREAT|O_TRUNC, 0666);

        //just one byte
        //int byte;
        //while((read(fd1, &byte, 1))>0){
        //        write(fd2, &byte, 1);
        //}

        // chunks
        //int bytes;
        //char buffer[1000];

        //while(1){
        //        bytes = read(fd1, buffer, 1000);
        //        if (bytes<=0){
        //                break;
        //        }
        //        write(fd2, buffer, bytes);
        //}

        //close(fd1);
        //close(fd2);

        FILE *f1 = fopen(argv[1],"r");
        FILE *f2 = fopen(argv[2], "w");

        //one byte stdio
        //int byte;
        //while((byte = fgetc(f1))!=EOF){
        //        fputc(byte, f2);
        //}

        char buffer[1000];

        while(fgets(buffer, 1000, f1)!=NULL){
                fputs(buffer, f2);
        }

        fclose(f1);
        fclose(f2);

        return 0;
}