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From: connery@bnrmtv.UUCP (Glenn Connery)
Newsgroups: net.micro.pc
Subject: Re: silent batch files
Message-ID: <282@bnrmtv.UUCP>
Date: Fri, 14-Mar-86 17:02:55 EST
Article-I.D.: bnrmtv.282
Posted: Fri Mar 14 17:02:55 1986
Date-Received: Sun, 16-Mar-86 08:40:43 EST
References: <11592@watnot.UUCP>
Distribution: net
Organization: Bell Northern Research, Mtn. View, CA
Lines: 69

This has been asked before and presumably will be again.  I thought I
might as well do a general posting.  Again, those who may need this in
the future please save it.

DOS 3.0 Patch for noecho in batch files:
========================================

Following is a file containing debug commands to default to noecho
for the DOS 3.0 command.com.  it consists of two sections--the code
section sets echo off for normal batch files, and the one byte
patch sets echo off for autoexec.bat.  from pcshare june/85.
simply perform the command:

  debug command.com <noecho.dbg

and this file will do the rest.  make sure to copy your command.com
before doing this, just in case...

-----------------cut here (create noecho.dbg)------------------
r
d a60 l 2
e a60 00 00
d 180c l 2
e 180c a8 2c
e 18b8 01
e 35ce 00
e 35d4 00
d 44b3 l 12
e 44b3 0d 0a 00 50 1e 55 89 e5 8b 46 08
d 44be l 12
e 44be 8e d8 e8 0d f1 5d 1f 58 e9 f8 e2
u 180b l 3
u 44b3
w
q
-----------------cut here--------------------------------------

DOS 3.1 Patch for noecho in batch files:
========================================

The following is from a general Compuserve posting for DOS 3.1:

    DEBUG COMMAND.COM
    -E 1967<cr>
    xxxx:1967  01.00<cr>
    -W<cr>
    -Q<cr>

Note 1: The default for AUTOEXEC.BAT files will still be ECHO OFF.
Note 2: If the last thing done in a .BAT file is to do ECHO ON, then
	you will get two prompts at exit.

The following is from Calvin R. Shields as reprinted in PC Mazazine Vol. 4
No. 4, p. 235 and will set ECHO OFF in your AUTOEXEC.BAT file.

    DEBUG COMMAND.COM
    -E 105B<cr>
    xxxx:105B  03.02<cr>
    -W<cr>
    -Q<cr>

There are patches for earlier versions of DOS that I used to have, and
I'm sure they're around someplace, but I seem to have lost them along the
way.  I know that they're still around someplace on PC Share if anyone
needs them...
-- 

Glenn Connery, Bell Northern Research, Mountain View, CA
{hplabs,amdahl,3comvax}!bnrmtv!connery