When did the `dc' command first appear?

Greg Lehey grog at lemis.com
Wed Oct 27 12:15:01 AEST 1999


On Tuesday, 26 October 1999 at 10:07:44 +1000, Warren Toomey wrote:
> In article by Eric Fischer:
>> Brian D. Chase writes,
>>
>>> Just a quick question.  Was the `dc' command introduced with one of the
>>> BSD releases or did it exist in an earlier version of Unix like the 6th or
>>> 7th Edition?
>>
>> It appears in the First Edition manual, and according to A Quarter
>> Century of Unix, it's even older than that.
>> eric
>
> There's a binary of dc from either 1st or 2nd Edition in the PUPS Archive:
>
> 	-r---wxrw- 0/0            6846 Apr 14 06:50 1973 bin/dc

Wouldn't that be the Third Edition with that timestamp?  I won't
comment again about the permissions.

Greg
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