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

int main(){
	int fd = open("/proc/writetestfile", O_WRONLY);
	char *message = "the armadillo ended up buying goats, but they ate all the grass around its burrow"; 
	size_t writelen = 0;
	while(writelen < strlen(message)){
		writelen += write(fd, message + writelen, strlen(message));
		printf("We wrote %lu characters\n", writelen);
	}

	return 0;
}