[ale] Exiting multi-block shell scripts

[Kenneth W Cochran]

>Date: Wed, 28 Jun 2000 08:39:07 -0400 (EDT)
>From: Danny Cox <danny at compgen.com>
>cc: Eric.Ayers at mindspring.com, ale at ale.org
>Subject: Re:  [ale] Exiting multi-block shell scripts
>
>On Wed, 28 Jun 2000, Kenneth W Cochran wrote:
>> Whoops...  Late-night lack of clear question-asking...  :)  :/
>>
>> I tried "exit."  :)
>>
>> What I Want To Do is be able to control-c out of this thing
>> "anywhere." Best I've been able to do so far is that I have to
>> ^C twice.  I guess I should also mention that the "do" object(s)
>> are series of commands (more specifically, I'm trying to
>> quickie-ping an address-range...)
>
>Try 'trap'.  Syntax is: trap cmd sigs.  For your purpose:
>
>		trap 'exit 0' 1 2 3 15
                     ^      ^  <---  yessssss, that was it...  :)
I'd been trying trap but having trouble with the syntax.

>Then, when/if the script gets a SIGHUP, SIGINT, SIGQUIT or
>SIGTERM, it will execute the 'exit 0'.  There is also a psuedo
>signal #0, which means 'on exit'.  I've used this feature many
>times to remove temporary files on the above signals, and on
>exit.  Pretty handy.

Indeed...  But "trap 'exit 0' 0" wouldn't stop it...
I guess I'm still trying to grok some of the picky syntax-stuff...  :)

>Danny

Hey, thanks...

-kc
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