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Date:      Thu, 25 Jun 2009 00:24:23 -0700
From:      perryh@pluto.rain.com
To:        invalid.pointer@gmail.com, green_tiger@comcast.net
Cc:        bf1783@googlemail.com, freebsd-questions@freebsd.org
Subject:   Re: The question of moving vi to /bin
Message-ID:  <4a432627.nNXzKFb0uYX/7NBi%perryh@pluto.rain.com>
In-Reply-To: <4A430CDF.2010205@comcast.net>
References:  <4A430505.2020909@gmail.com> <4A430CDF.2010205@comcast.net>

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> ed is an interactive program, and it has always been considered as
> such, at least since BSD 4.2.  Way back then there were three main
> editors, ex, vi, and ed.

ed goes back at least as far as the Bell Labs 6th Edition (PDP-11),
where it was the only editor in the distribution.  ex and vi (and
termcap, without which there would be no vi) were written later, at
UC Berkeley.

> If you had a nice video terminal then you used vi.  But if you
> were stuck using a hard copy terminal like a Decwriter, then you
> used ex.  And ed was the simplified (dumbed down) editor for
> newbies.

More like, ed was the "original" Unix editor; ex and vi presumably
were inspired, at least in part, by a desire to improve on ed's
limitations.  I doubt I'm the only one who muttered about the bother
of horsing around with ed, back when there was nothing else.



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