What is inode in Linux and IF You are Out of It (solution) | Linux

inode is basically a count of total number of files in directories of a user account in *nix systems.

similar to a unique identification of individuals in a country.

inode is data structure , it contains:
size,
user id,
group id
device id,
mode and access
protection
timestamps
links
points
etc.
except file name, and contents.