Dez dicas para novatos no ubuntu

No site linux.com há um artigo com dez dicas para novatos em ubuntu, numa delas por exemplo
podemos trocar o editor padrão do sistema:

To change the default editor, run sudo update-alternatives --config editor. You'll see a dialog like this:

There are 3 alternatives which provide `editor'.

Selection    Alternative
-----------------------------------------------
1        /usr/bin/vim
2        /bin/ed
*+    3  /bin/nano

Press enter to keep the default[*], or type selection number:

Just type 1 to switch to Vim. Note that on my system, I don't have Emacs or many other editors installed; if I did, the utility would offer the other editors as choices.