file creation time (crtime on EXTFS) is not defined by POSIX; 未被实现的proposal:xstat() and fxstat() 可能可用的命令: statx() tricks 利用系统调试: debugfs -R ‘stat /path/to/file’ /dev/sda1
A file in the file system is basically a link to an inode. A hard link, then, just creates another file with a link to the same underlying inode. When you delete a file, it removes one link to the underlying inode. The inode is only deleted (or deletable/over-writable) when all links to the inode have been deleted. Hard links are only valid within the same File System. A symbolic