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bug#32751: split does not break on error from tar
From: |
Pádraig Brady |
Subject: |
bug#32751: split does not break on error from tar |
Date: |
Tue, 18 Sep 2018 01:06:24 -0700 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:45.0) Gecko/20100101 Thunderbird/45.8.0 |
tag 32751 notabug
close 32751
stop
On 18/09/18 00:59, Alexander Fieroch wrote:
>> As far as I can tell, this is not a bug, but the way pipelines work,
>> i.e. the result of a pipeline (here the combination of tar and
>> split) is the result of the last command in the pipeline. If you
>> want the combination to fail if tar fails, you can use e.g.
>> set -o pipefail in bash or read PIPESTATUS. For other shells,
>> see e.g. http://cfajohnson.com/shell/cus-faq-2.html#Q11
>>
>>
>> Rainer
>
> Thanks Rainer, that is a very good hint and is working for me!
> But why is this not a bug? In what case is it useful to ignore a
> non-zero exit code in a pipeline?
Well that's been the shell behavior since the beginning,
and lot's of scripts depend on that,
and so it can't be changed.
As for split, it just sees the end of input
and exits without error.
thanks,
Pádraig