##### write

Synopsis:

                int write(int fd, const void *buf, unsigned int count);

Request:
  ‘`Fwrite,fd,bufptr,count`’
Return value:
  On success, the number of bytes written are returned. Zero indicates nothing was written. On error, -1 is returned.
Errors:
  `EBADF`
    fd is not a valid file descriptor or is not open for writing.
  `EFAULT`
    bufptr is an invalid pointer value.
  `EFBIG`
    An attempt was made to write a file that exceeds the host-specific maximum file size allowed.
  `ENOSPC`
    No space on device to write the data.
  `EINTR`
    The call was interrupted by the user.