ref: 2b99422480d596ebc26921c87c6bb81a07949f3e
dir: /src/fhello.c/
#include <u.h>
#include <libc.h>
void
main(int , char* [])
{
char msg[] = "hello\n";
int fd;
fd = open("afile", OWRITE);
write(fd, msg, strlen(msg));
close(fd);
exits(nil);
}