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文件和目录的操作函数实例

作者 佚名技术 来源 Linux系统 浏览 发布时间 2012-04-17
l");

  printf("delete tree==");

  scanf("%s",pathname);

  fd=rmdir(pathname);

  if(fd==-1)

  {

  perror("delete tree failed,try again..");

  close(fd);

  return;

  }

  else

  {

  system("ls -l");

  printf("delete success\n!");

  }

  }

  //============================================================================

  //delete the file

  void filedelete()

  {

  int fd;

  char pathname[SIZE];

  system("ls -l");

  printf("delete file==");

  scanf("%s",pathname);

  fd=unlink(pathname);

  if(fd==-1)

  {

  perror("delete file failed,try again...\n");

  return;

  }

  else

  {

  system("ls -l");

  printf("delete file success!\n");

  }

  }

  //============================================================================

  //file property

  void treefileproperty()

  {

  int fd;

  struct stat buf;

  mode_t mode;

  char pathname[SIZE];

  system("ls -l");

  printf("file/tree==");scanf("%s",pathname);

  fd=open(pathname,O_RDWR);

  if(fd==-1)

  {

  perror("failed try again..");

  return;

  }

  stat(pathname,&buf);

  mode=buf.st_mode;

  printf("%-10s","mode:");

  printf("s","read"); 拥有帝国一切,皆有可能。欢迎访问phome.net

  printf("s","write");

  printf("s","execute\n");

  printf("s","all user");

  if((mode & 0400)==S_IRUSR)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 0200)==S_IWUSR)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 0100)==S_IXUSR)

  printf("s","true\n");

  else

  printf("s","false\n");

  printf("s","group");

  if((mode & 040)==S_IRGRP)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 020)==S_IWGRP)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 010)==S_IXGRP)

  printf("s","true\n");

  else

  printf("s","false\n");

  printf("s","other user");

  if((mode & 04)==S_IROTH)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 02)==S_IWOTH)

  printf("s","true");

  else

  printf("s","false");

  if((mode & 01)==S_IXOTH)

  printf("s","true\n");

  else

  printf("s","false\n");

  printf("size:%ld\n",buf.st_size);

  printf("BLK size :%ld\n",buf.st_blksize);

  }

  //================================================================================

  //rename tree or file

  void treefilerename()

  {

  int fd;

  char oldname[SIZE],newname[SIZE];

  system("ls -l");

  printf("old name==");scanf("%s",oldname);

  printf("new name==");scanf("%s",newname);

  fd=rename(oldname,newname);

  if(fd==-1)

  {

  perror("rename failed ,try again..");

  return;

  }

  else

  {

  system("ls -l");

  printf("rename success!\n");

  }

  }

  //=================================

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