Set and Change the Default Editor in Linux
By Shay Anderson on January 2013
Changing and setting the default editor in Linux is easy, here is an example using the command line: >> export EDITOR=nanoOr if you wanted to use for one time, like when using crontab: >> EDITOR=nano crontab -e

http://www.shayanderson.com/linux/set-and-change-the-default-editor-in-linux.htm