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Re: [Help-bash] Find out trap ERR from within a function when errtrace i
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From: |
Chet Ramey |
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Subject: |
Re: [Help-bash] Find out trap ERR from within a function when errtrace is unset? |
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Date: |
Wed, 25 Feb 2015 13:25:20 -0500 |
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User-agent: |
Mozilla/5.0 (Macintosh; Intel Mac OS X 10.10; rv:31.0) Gecko/20100101 Thunderbird/31.4.0 |
On 2/25/15 10:31 AM, Patrick Schleizer wrote:
> Hi!
>
> TLDR:
>
> If errtrace is not in use, and one is within a function, is it possible
> from within the function to find out which trap ERR is set on global level?
No, unless you have saved any existing trap into a variable that you can
interrogate from within the function. That's the reason for errtrace:
to allow a way to circumvent the usual ERR trap inheritance rules. Bash
functions don't have local trap state otherwise.
--
``The lyf so short, the craft so long to lerne.'' - Chaucer
``Ars longa, vita brevis'' - Hippocrates
Chet Ramey, ITS, CWRU address@hidden http://cnswww.cns.cwru.edu/~chet/