resize2fs command
 

what is the fuction of resize2fs command and how this command works internally , how it is related to inodenumber or does it format the partition

Homework.
You do some investigation for yourself.

yes .i know the synyax and the fuction but i want to know how does it works internally in the system

is resize2fs is related to inode numder

Yes.

Given that this is Linux, why not read the src code ?

ask ur instructor...if he can't then tell me .i'll tell u full functionality or internal working of given command.

Steve.