Relay-Version: version B 2.10 5/3/83; site utzoo.UUCP
Path: utzoo!utgpu!water!watnot!watmath!clyde!rutgers!husc6!yale!cmcl2!rna!rocky2!reintom
From: reintom@rocky2.UUCP
Newsgroups: comp.sys.ibm.pc
Subject: This is how to turn echo off with Zenith's DOS 3.1
Message-ID: <350@rocky2.UUCP>
Date: Thu, 26-Mar-87 13:09:54 EST
Article-I.D.: rocky2.350
Posted: Thu Mar 26 13:09:54 1987
Date-Received: Sat, 28-Mar-87 07:54:58 EST
Organization: Rockefeller Univ.,N.Y.C 10021
Lines: 26
Keywords: echo batch zenith

[]

Some people have recently asked how to turn echo off permanently
in batch files using Zenith's DOS version 3.1.  I did this a
while back.  The method is below.

Make a copy of COMMAND.COM.  Debug the new copy.

C>debug command.com
-e 1987
xxxx:1987  01.00
-w
Writing 5ADA bytes
-q

Put the new copy where your computer will boot from it.  Stash
away the old copy just in case.

Now batch files will have echo off unless they have an "echo on"
statement in them.

-- 
Tom Reingold;  The Rockefeller University; 1230 York Av; NY 10021
PHONE: (212) 570-7709 [office]; (212) 304-2504 [home]
ARPANET: reintom@rockefeller.arpa BITNET: REINTOM@ROCKVAX
UUCP: {seismo|ihnp4|yale|harvard|philabs|phri}!cmcl2!rna!rocky2!reintom