"Nano is an alternative text editor. The key sequences
in nano are entered using the keyboard, making nano a "modeless"
editor, unlike vim. With the exception of Control and Meta key
sequences, all the keys will enter text into the file being edited.
You do not have to switch modes at all. In addition, nano provides
some text aids. The 2.0 release enhances the usability and features
of nano. Centos still used version 1.3.
Improved color syntax highlighting
Copy text without cutting
Verbatim input mode
Repeat last seach w/o confirmation (Meta-W)
Spell check/replace selected text only
Indent marked text"