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/**********************************
  4.19 (1)
  read
***********************************/

#include <stdio.h>
#include <stdlib.h>
#include <sys/stat.h> 
#include <sys/types.h>
#include <unistd.h> 
#include <string.h>
#include <fcntl.h>
int main(void)
{
  int fd, n;
  char buf[30];
  fd = open("/home/liaoye/lianxi/akae.txt", O_RDWR);
  if(fd > 0)
  {
  printf("open success!\n");
  }
  else
  {
  printf("open error!\n");
  exit(1);
  }
  read(fd, buf, 30);
  printf("%s", buf);
  return 0;
}


/**********************************
  4.19 (2)
  COPY
  read AND write
*******


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  int x2;

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