ex-vi: ex-vi (The Traditional Vi) ex-vi: ex-vi: The vi editor is one of the most common text editors on Unix. It was ex-vi: developed starting around 1976 by Bill Joy at UCB, who was tired of ex-vi: the ed editor. But since he used ed as a code base, access to the ex-vi: original sources has required a commercial Unix Source Code License ex-vi: for more than twenty years. ex-vi: ex-vi: ex-vi: ex-vi: