理解inode in Linux

• Overview

  The inode (index node) is a data structure in a Unix-style file system that describes a file-system object such as a file or a directory.

  Each inode stores the attributes and disk block locations of the object’s data.

  Each file has an inode containing metadata about the file.

• stat , statx

  An application can retrieve this metadata using stat, which returns a stat structure, or statx which returns a statx structure.

  $ stat fileName
  

• References

1. 阮一峰的网络日志: 理解inode
2. inode(7) - Linux manual page
3. The Linux Information Project