GNU bug report logs - #19243
echo comand bug

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Message #18 received at 19243-done <at> debbugs.gnu.org (full text, mbox):

From: Eric Blake <eblake <at> redhat.com>
To: Erik Auerswald <auerswal <at> unix-ag.uni-kl.de>, 19243-done <at> debbugs.gnu.org,
 "Chema F. Ledesma" <hecam33 <at> gmail.com>
Subject: Re: bug#19243: echo comand bug
Date: Tue, 02 Dec 2014 06:22:13 -0700

[Message part 1 (text/plain, inline)]

On 12/02/2014 02:28 AM, Erik Auerswald wrote:
> Hi,
> 
> On Mon, Dec 01, 2014 at 11:12:51AM -0700, Eric Blake wrote:
>> On 12/01/2014 10:56 AM, Chema F. Ledesma wrote:
>>>
>>> If you execute echo "!!!!!!!!!!!!!!!!!!!!!!!!" it does something strange
>>> repeating the last command before echo comand.
>>
>> Thanks for the report.  However, this is not a bug in 'echo', but a
>> feature of your shell.
> 
> And because of this you can use single quotes instead of double quotes to
> print those exclamation marks:
> 
> $ echo '!!!!!!!!!!!!!!!!!!!!!!!!'
> !!!!!!!!!!!!!!!!!!!!!!!!

Or turn off history expansion:

$ set +o history
$ echo "!!!!"
!!!!

-- 
Eric Blake   eblake redhat com    +1-919-301-3266
Libvirt virtualization library http://libvirt.org

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