Originally Posted by nagananda
please tell me how to link two different files in linux
The question is not meaningful. You can have the same file data accessible by two file names; that would be a "hard link" set up by
ln existing_file new_file_name
and you can have what Windows calls a shortcut to a file; that would be a "symbolic link" set up by
ln -s existing_file symlink_name
It might help if you told us what you want to achieve.