Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!watmath!clyde!burl!ulysses!allegra!mit-eddie!genrad!decvax!decwrl!ucbvax!ucsfcgl!ucsfcca!root
From: root@ucsfcca.UUCP
Newsgroups: net.micro.amiga
Subject: Re: Lattice, and vi-ex
Message-ID: <521@ucsfcca.UUCP>
Date: Tue, 27-May-86 19:52:16 EDT
Article-I.D.: ucsfcca.521
Posted: Tue May 27 19:52:16 1986
Date-Received: Fri, 30-May-86 06:06:43 EDT
References: <8605212037.AA29769@pavepaws>
Organization: UCSF Computer Center
Lines: 21

> 
>  Rather strange wording, but to keep matter's straight, UNIX Vi was
> built on top of ex.
> 

Actually, ex is an enhanced version of the traditional Unix editor `ed'
which is included in all Unix systems. AT&T has imported `ex' into its
System V from the University of California at Berkeley versions BSD X.X
(BSD is Berkeley Software Distribution; the latest X.X is 4.3) and `ex'
and `vi' are the same program which looks at the name it was called by
to see what mode it should use to start.

Even with `ex' included, `ed' is retained because it is more suitable
for use in scripts (smaller, faster starting, less verbose, and
universally available in Unix).

Side issue: All this time I have been wondering why there were so
many writers in this group who can't spell `kernel' but now I see
that it is C-A who don't know how to spell.

Thos Sumner    (...ucbvax!ucsfcgl!ucsfcca.UCSF!thos)