Inode: Each file contains an index number known as "inode" which is comprised of metadata about the associated file.
Hard Link: is the mirror of original linked file. In such case, hard link and original file contains same inode. Hard link remains linked whether original file is removed.
Soft Link: is like shortcut feature of Windows OS. In such case, hard link and original file contains different inode. Soft link will not work correctly if original file is removed.
