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Re: SIGINT handling
From: |
Chet Ramey |
Subject: |
Re: SIGINT handling |
Date: |
Sat, 19 Sep 2015 16:42:28 -0400 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:38.0) Gecko/20100101 Thunderbird/38.2.0 |
On 9/18/15 11:14 AM, Stephane Chazelas wrote:
> Hello.
>
> In:
>
> bash -c 'sh -c "trap exit INT; sleep 10; :"; echo hi'
>
> If I press Ctrl-C, I still see "hi".
>
> On Solaris with 4.1.11(2)-release (i386-pc-solaris2.11), that
> seems to be consistent.
>
> On Debian with 4.3.42(1)-release (x86_64-pc-linux-gnu), that
> seems to happen only in something like 80% of the time.
>
> For bash to exit upon receiving that SIGINT, the currently
> running process has to die itself as well of SIGINT (or the
> currently running command to be builtin).
>
> That sounds like a bad idea, especially considering that it
> doesn't exit either if the process returns with exit code 130
> upon receiving that SIGINT. For instance:
>
> For instance, in:
>
> bash -c 'mksh -c "sleep 10; :"; echo hi'
>
> Upon pressing Ctrl-C, mksh handles the SIGINT and exits with
> 130 (as opposed to dying of a SIGINT), so bash doesn't exit
> (sometimes only on Debian).
I'm surprised you've managed to avoid the dozen or so discussions on the
topic.
http://lists.gnu.org/archive/html/bug-bash/2014-03/msg00108.html
Chet
--
``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/
- Re: SIGINT handling, (continued)
- Re: SIGINT handling, Stephane Chazelas, 2015/09/21
- Re: SIGINT handling, Chet Ramey, 2015/09/21
- Re: SIGINT handling, Stephane Chazelas, 2015/09/21
- Re: SIGINT handling, Stephane Chazelas, 2015/09/21
- Re: SIGINT handling, Chet Ramey, 2015/09/22
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
- Re: SIGINT handling, Chet Ramey, 2015/09/22
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
Re: SIGINT handling,
Chet Ramey <=
- Re: SIGINT handling, Stephane Chazelas, 2015/09/19
- Re: SIGINT handling, Chet Ramey, 2015/09/19
- Re: SIGINT handling, Stephane Chazelas, 2015/09/20
- Re: SIGINT handling, Stephane Chazelas, 2015/09/20
- Re: SIGINT handling, Stephane Chazelas, 2015/09/20
- Re: SIGINT handling, Chet Ramey, 2015/09/21
- Re: SIGINT handling, Stephane Chazelas, 2015/09/21
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
- Re: SIGINT handling, Stephane Chazelas, 2015/09/22
- Re: SIGINT handling, Greg Wooledge, 2015/09/22