Groups > gnu.bash.bug > #12025

Re: SHELLOPTS=xtrace security hardening

From	Chet Ramey <chet.ramey@case.edu>
Newsgroups	gnu.bash.bug
Subject	Re: SHELLOPTS=xtrace security hardening
Date	2015-12-15 11:18 -0500
Message-ID	<mailman.2170.1450196337.31583.bug-bash@gnu.org> (permalink)
References	(3 earlier) <20151214180113.169546iutu72yw9k@webmail.alunos.dcc.fc.up.pt> <20151214173231.GA6524@chaz.gmail.com> <20151215003016.598611ow5f3lw4qo@webmail.alunos.dcc.fc.up.pt> <56701D21.3070700@case.edu> <20151215154044.GB6836@chaz.gmail.com>

Show all headers | View raw

On 12/15/15 10:40 AM, Stephane Chazelas wrote:
> 2015-12-15 09:01:05 -0500, Chet Ramey:
> [...]
>>> Mind explaining this one?
>>> I can't seem to write to HISTFILE in a non-interactive shell, or am i
>>> missing something?
>>
>> You just need to enable history (set -o history).  History is independent
>> of whether or not the shell is interactive; it's just enabled by default
>> in interactive shells.
> [...]
> 
> BTW:
> 
> $ bash -o history -o histexpand -c 'echo !!'
> !!

Thanks, I'll take a look.  It works when run as a script.


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
		 ``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU    chet@case.edu    http://cnswww.cns.cwru.edu/~chet/

Back to gnu.bash.bug | Previous | Next | Find similar

Thread

Re: SHELLOPTS=xtrace security hardening Chet Ramey <chet.ramey@case.edu> - 2015-12-15 11:18 -0500

csiph-web