Nano

deixando nano padrão para o usuário

echo export EDITOR=/usr/bin/nano > ~/.bashrc
source ~/.bashrc

ajustando cores do nano para html /usr/share/nano/html.nanorc

syntax "html" "\.htm[l]?$"
color brightblue start="<" end=">"
color red "&[^;space:]*;"
color yellow "".*"|qq\|.*\|"
color red "(alt|bgcolor|height|href|label|longdesc|name|onclick|onfocus|onload|onmouseover|size|span|src|style|target|type|value|width|title|class|id)="