Re: trap EXIT in piped subshell not triggered during wait

[Chet Ramey]

On 4/13/13 1:35 AM, Ilya Basin wrote:
> Hi!
> I've got strange behavior. Here's my script:
> 
>     #!/bin/bash
>     {
>         trap '
>             echo "in trap EXIT">&2
>         ' EXIT
>         sleep 4 &
>         echo 'sleep 2'>&2
>         sleep 2
>         echo 'wait $!'>&2
>         wait $!
>         echo 'exit'>&2
>         exit
>     } | cat
> 
> If I press Ctrl-C during wait, the trap isn't triggered.
> If I replace curly brackets with round brackets, it works. What's the
> difference?

Thanks for the report.  This was fixed a few months ago and the fix is in
the devel branch.

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/