Setting up a system takes time and effort. It would be ideal if we could port our settings to the new system.
tar
has the capability to preserve permissions for folders and files.
We can use the following commands to package the contents of the home folder
and unpack it in the new ubuntu system be using the following commands:
tar cpf ~/home.tar ~
sudo tar xpf home.tar home/suhas/ -C . --strip-components=2
Also see http://unix.stackexchange.com/questions/236255/zipping-files-without-changed-its-ownership