Re: echo -n

[Jyoti B Tenginakai]

HI All,

Thanks for your quick response.

I have tried using the printf instead of echo. But the issue with printf is , the behaviour is not consistent with what echo prints for all the inputs i.e.
In my script I am generically using echo for all the options. If I have to use printf instead of it should behave consistently .
if echo * is passed to bash shell, the o/p shows the \t seperated values whereas with printf '%s' *, it won't display space separated output. Again printf '%s ' # behaviour is different from what echo # shows

Thanks & Regards
--Jyoti


****************************************
Jyoti Tenginakai
AIX-Security Development Team
IBM India Software Lab
EGD 'D' Block Sixth Floor
Off Indiranagar Koramangala Intermediate Ring Road
Bangaluru - 560071
ph: 41776666
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Mail:jyoti.b.t@in.ibm.com



Pierre Gaston ---02/02/2017 08:45:56 PM---On Thu, Feb 2, 2017 at 11:02 AM, Sangamesh Mallayya < sangamesh.swamy@in.ibm.com> wrote:

From: Pierre Gaston <pierre.gaston@gmail.com>
To: Sangamesh Mallayya <sangamesh.swamy@in.ibm.com>
Cc: "bug-bash@gnu.org" <bug-bash@gnu.org>, Jyoti B Tenginakai <jyoti.b.t@in.ibm.com>
Date: 02/02/2017 08:45 PM
Subject: Re: echo -n

---

On Thu, Feb 2, 2017 at 11:02 AM, Sangamesh Mallayya <sangamesh.swamy@in.ibm.com> wrote:

Hi,

description:
in bash echo -n , echo -e , echo -E has a special meaning. But we do not
have a way in bash shell if we want to print
-n , -e and -E using echo command. Other shells supports printing of
-n/-e/-E options using echo command.

For example

with ksh
# echo -n
-n
#

with bash
# echo -n

#

Please let us know if this a bug or do we have any other option to print
-n ?

Here is the environment details.

version: bash 4.3
Hardware and Operating System P7 AIX
Compiled with AIX xlc

Thanks,
-Sangamesh

Not a bug, echo is not portable and posix recommends using printf e.g.

printf '%s\n' -n