With rapid development and improvement, Nemo now become a full-featured file manager with lots of features, more customizable, and looks beter (in my opinion) than its original (Nautilus).
Nemo is the default file manager in Linux Mint, to handle folder and also handle the desktop. You can also easily install Nemo in Ubuntu if you want which is just apt-get away using a PPA (read more: How to install Nemo in Ubuntu),
When you install Nemo in Ubuntu, it doesn't set itself as the default file manager, Nautilus remains as the default one. If you want to integrate Nemo into Ubuntu system (as the default folder handler), you have to do it manually.
Here I want to share simple command to set Nemo as the default file manager in Ubuntu.
