*BSD News Article 82775


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From: hnsngr@sirius.com (Ron Hunsinger)
Newsgroups: comp.unix.misc,comp.unix.bsd.misc,alt.folklore.computers
Subject: Re: On the Naming of UNIX Things
Date: Wed, 13 Nov 1996 07:56:36 -0800
Organization: ErsteSoft
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In article <1996111212371894551@[192.159.32.153]>,
swb@mercury.campbell-mithun.com (Shawn Barnhart) wrote:

> Are there many other OS of Unix vintage that have as many two character
> commands?  I can't remember the HP2000 we used in elementary school (ca
> 1976) having two character commands, but I do remember using clunky
> teletypes on them.  Certainly when that machine was developed, there
> were no more high speed video terminals in use than in the Unix
> development time period.

The Burroughs (now Unisys) Medium Systems MCP (Master Control Program) uses
ONLY two-letter commands at the ODT (Operator Display Terminal).

Thus you get things like:

   DS - DiScontinue program
   DM - DuMp memory for program
   DP - DumP and discontinue

Most commands took parameters, like which program was to be affected. Some
did not, and would ignore any you supplied. Since all commands were exactly
two letters long, there was no need to separate the command from the
parameters.

For example, the SL command (SPO List) would produce a list of all the
remote SPOs (SuPervisOry consoles). Since there usually weren't any, the
usual response was "NONE".

It was also an obscure enough command that not many people knew it. You
could (momentarily) blow someone's mind by typing in

   SLEPT WITH ANY VIRGINS LATELY?
or
   SLAIN ANY DRAGONS LATELY?

and letting them figure out how the computer knew to say: NONE.

-Ron Hunsinger