[aklug] Re: bash die

On 09/15/2010 01:19 PM, Arthur Corliss wrote:
> On Wed, 15 Sep 2010, Christopher Howard wrote:
>
>> Say you have a bash script where if any command fails, the scripts
>> should stop. What would be the sensible way to deal with that?
>>
>> I was thinking, write some kind of die function, and then for each command:
>>
>> command_1 || die("command_1 failed")
>> mount /this/file || die("failed to mount important filesystem")
>> ...
>>
>> Or is there some better way to do this?
>
> Don't use bash, use make. That's exactly what it was designed to do.
>
> --Arthur Corliss
> Live Free or Die
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I was of the understand that make doesn't preserve variable assignments
across commands, which means you couldn't do something like this:

   VAR=`ls`
   echo $VAR

If I'm wrong, write me a Makefile that proves it.

And how do you write functions in a Makefile?

-- 
Christopher Howard
http://frigidcode.com
http://theologia.indicium.us
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