Linux
Advanced
What is Inode?
A data structure in Unix filesystems that stores metadata about a file, excluding its name and data.
An inode contains information about a file including its size, ownership, permissions, timestamps, and pointers to the data blocks. Each file has a unique inode number within its filesystem.
The inode does not store the filename — that mapping is maintained in directory entries. This is why hard links work: multiple directory entries can point to the same inode.
