nano is a free clone of the non-free text editor pico. It is one of the most basic and user friendly terminal text editors available, and hence is frequently recommended to those new to UNIX systems.
To open a text file, or to create a new text file, simply type:
and type away. To save the document, hit ctrl+O. To quit, ctrl+X. To open another document from within nano, hit ctrl+l and type the name of the file you wish to open
To search a document in a non-case-sensitive fashion, hit ctrl+w and type your search term, and then press enter. To search for the same term again, simply hit ctrl+w and hit enter. Basic help can be displayed by pressing ctrl+g.