> > It wouldn't be a hard thing to do. Is there a specification that
> > describes the requirements and the expected behavior for this sh and
> > in particular for the builtin trap function?
> 
> Dunno.  I'd check POSIX; they were certainly keen on having kill(1)
> accept names, so I wouldn't be surprised if they had something to say
> about sh(1).

`trap' is required to accept signal names, possibly with a `SIG' prefix.
It may not accept signal numbers unless the system's signal numbering
corresponds to a set of values enumerated in the POSIX standard
(SIGHUP == 1, SIGINT == 2, and so on).


-- 
``The lyf so short, the craft so long to lerne.'' - Chaucer
( ``Discere est Dolere'' -- chet)

Chet Ramey, CWRU    chet@po.CWRU.Edu    http://cnswww.cns.cwru.edu/~chet/