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Re: Command substitution and errexit
From: |
Chet Ramey |
Subject: |
Re: Command substitution and errexit |
Date: |
Mon, 15 Oct 2012 19:13:01 -0400 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:15.0) Gecko/20120907 Thunderbird/15.0.1 |
On 10/15/12 11:23 AM, Nikolai Kondrashov wrote:
> Hi everyone,
>
> I've noticed that errexit is disabled inside command substitution.
> Is this intentional?
Yes. It's been that way since bash-1.14. The reasons why are lost in
time -- it was 17 years ago, after all -- but probably go something like
not wanting the parent's settings to produce unexpected results in the
child process.
Current versions of bash disable -e inside command substitution only when
posix mode is not enabled.
> interesting, $SHELLOPTS shows it still on inside the command substitution.
Thanks, that's a problem.
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: Command substitution and errexit, (continued)
- Re: Command substitution and errexit, Nikolai Kondrashov, 2012/10/15
- Re: Command substitution and errexit, Greg Wooledge, 2012/10/15
- Re: Command substitution and errexit, Nikolai Kondrashov, 2012/10/15
- Re: Command substitution and errexit, DJ Mills, 2012/10/15
- Re: Command substitution and errexit, DJ Mills, 2012/10/15
- Re: Command substitution and errexit, Nikolai Kondrashov, 2012/10/16
- Re: Command substitution and errexit, Nikolai Kondrashov, 2012/10/16
- Re: Command substitution and errexit, Greg Wooledge, 2012/10/16
- Re: Command substitution and errexit, Nikolai Kondrashov, 2012/10/16
Re: Command substitution and errexit,
Chet Ramey <=