Re: cannot pipe output of trap

[Chet Ramey <chet.ramey@xxxxxxxx>]

proway.imbusch@xxxxxxxxxxx wrote:

> Machine Type: i686-pc-cygwin
>
> Bash Version: 3.2
> Patch Level: 39
> Release Status: release
>
> Description:
>         After registering trap handlers, 'trap | cat' does not deliver any
>         output ('trap' does).

Each element of a pipeline is run in a separate process.  The subshell
forked to run each element does not inherit traps from its parent --
disposition of trapped signals is reset to the default.  This is as Posix
specifies.

Chet
--
``The lyf so short, the craft so long to lerne.'' - Chaucer

Chet Ramey, ITS, CWRU    chet@xxxxxxxx    http://cnswww.cns.cwru.edu/~chet/