From owner-freebsd-questions@FreeBSD.ORG  Wed Mar 28 13:17:13 2007
Return-Path: <owner-freebsd-questions@FreeBSD.ORG>
X-Original-To: freebsd-questions@freebsd.org
Delivered-To: freebsd-questions@freebsd.org
Received: from mx1.freebsd.org (mx1.freebsd.org [69.147.83.52])
	by hub.freebsd.org (Postfix) with ESMTP id 10E5916A405
	for <freebsd-questions@freebsd.org>;
	Wed, 28 Mar 2007 13:17:13 +0000 (UTC)
	(envelope-from cptsalek@gmail.com)
Received: from nf-out-0910.google.com (nf-out-0910.google.com [64.233.182.187])
	by mx1.freebsd.org (Postfix) with ESMTP id 9A9BC13C448
	for <freebsd-questions@freebsd.org>;
	Wed, 28 Mar 2007 13:17:12 +0000 (UTC)
	(envelope-from cptsalek@gmail.com)
Received: by nf-out-0910.google.com with SMTP id k27so3305051nfc
	for <freebsd-questions@freebsd.org>;
	Wed, 28 Mar 2007 06:17:11 -0700 (PDT)
DKIM-Signature: a=rsa-sha1; c=relaxed/relaxed; d=gmail.com; s=beta;
	h=domainkey-signature:received:received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
	b=EViaJHQiX2F6+i5VPP5w5JC4XooNc3zO/2uBAnsxAlXXDCZ8HTQB4z3fIvlzI++WMMoKqNNlFpDZMVpx0JPAin8SYYJjNZyjxapXBW2SyDpfxOZdMCDqwgJ/7pDXoHS602Ws03wW7MuhJY79WyCAcSG8idZUSIXzc8drihmhQck=
DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=beta;
	h=received:message-id:date:from:to:subject:cc:in-reply-to:mime-version:content-type:content-transfer-encoding:content-disposition:references;
	b=S0sPyeX2FwJpWhI4iD8p60tnwXYhxxME66q14Zg05z1w5Po6yspf20yVKqnREFq80s1CuyMkOJtPx0clSuEv/XkuUriMc0V4uEFecG+nMpCEIQkZU0UV+K/bdwcsK6p7LRxmYjRQEVPjCgd2uwTm3mDkHtbCFk9UOoxcmaP1/iQ=
Received: by 10.82.136.4 with SMTP id j4mr18860722bud.1175087831039;
	Wed, 28 Mar 2007 06:17:11 -0700 (PDT)
Received: by 10.82.153.6 with HTTP; Wed, 28 Mar 2007 06:17:11 -0700 (PDT)
Message-ID: <14989d6e0703280617w6d836d1fhb2dce468c02259d4@mail.gmail.com>
Date: Wed, 28 Mar 2007 15:17:11 +0200
From: "Christian Walther" <cptsalek@gmail.com>
To: "Apeksha Godiyal" <apeksha.godiyal@gmail.com>
In-Reply-To: <8e1be510703280534h2e0d5169s5fb6c5ba38de1526@mail.gmail.com>
MIME-Version: 1.0
Content-Type: text/plain; charset=ISO-8859-1; format=flowed
Content-Transfer-Encoding: 7bit
Content-Disposition: inline
References: <8e1be510703280534h2e0d5169s5fb6c5ba38de1526@mail.gmail.com>
Cc: freebsd-questions@freebsd.org
Subject: Re: stty -echo
X-BeenThere: freebsd-questions@freebsd.org
X-Mailman-Version: 2.1.5
Precedence: list
List-Id: User questions <freebsd-questions.freebsd.org>
List-Unsubscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=unsubscribe>
List-Archive: <http://lists.freebsd.org/pipermail/freebsd-questions>
List-Post: <mailto:freebsd-questions@freebsd.org>
List-Help: <mailto:freebsd-questions-request@freebsd.org?subject=help>
List-Subscribe: <http://lists.freebsd.org/mailman/listinfo/freebsd-questions>, 
	<mailto:freebsd-questions-request@freebsd.org?subject=subscribe>
X-List-Received-Date: Wed, 28 Mar 2007 13:17:13 -0000

On 28/03/07, Apeksha Godiyal <apeksha.godiyal@gmail.com> wrote:
> Hi,
>
> I have been using the command stty -echo which is supposed to turn of
> displaying characters. But it is not turning off the echoing of typed chars.
>
> Example:
>
> $ stty -echo
> $ echo hi
> hi
> $
>
> Here "echo hi" should not have been printed.
> Is this a bug or have I not interpreted the man pages?

AFAIK it doesn't work in an interactive shell.
But it works in a script, just try something like:

#!/bin/sh
stty -echo
read

> Thanks in advance,
> Apeksha Godiyal

HTH
Christian