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Re: Failed exec resets job control state
From: |
Chet Ramey |
Subject: |
Re: Failed exec resets job control state |
Date: |
Sun, 17 Feb 2019 14:59:42 -0500 |
User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.14; rv:60.0) Gecko/20100101 Thunderbird/60.5.0 |
On 2/15/19 7:32 PM, Grisha Levit wrote:
> An `exec` that can't execute the supplied command seems to cause the
> status of job control to become reset to the default state:
>
> $ bash -O execfail -mc 'echo $-; exec xxx; echo $-'
> hmBc
> bash: line 0: exec: xxx: not found
> hBc
>
> $ set +m; echo $-
> hiBHs
> $ exec xxx
> bash: exec: xxx: not found
> $ echo $-
> himBHs
Thanks for the report. It's an unusual set of circumstances where one
turns off job control in an interactive shell.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, UTech, CWRU chet@case.edu http://tiswww.cwru.edu/~chet/