doveadm fetch line wrapping

[Peter Chiochetti]

Am 2015-09-28 um 14:03 schrieb Timo Sirainen:
> On 28 Sep 2015, at 14:03, Peter Chiochetti <pch at myzel.net> wrote:
>>
>> The manual at http://wiki2.dovecot.org/Tools/Doveadm/Deduplicate
>> tells how to estimate what will be expunged:
>>
>>> doveadm -f table fetch -u jane 'guid uid' mailbox a_Box | sort
>>
>> I wanted to learn the subjects:
>>
>>> doveadm -f table fetch -u jane 'guid hdr.Subject' mailbox a_Box
>>
>> In the output, long lines will be broken up, continuation lines starting with a blank (mostly), disabling the sort
>>
>>> doveadm -f table fetch -u jane 'guid hdr.Subject' mailbox a_Box \
>>> | sed -e :a -e '$!N;s/\n\s//;ta' -e 'P;D' | sort --stable
>>
>> Some (gnu) sed foo joins them back together, the sort works again :)
>
> I think this would work too:
>
> doveadm -f table fetch -u jane 'guid hdr.Subject.utf8' mailbox a_Box | sort
>

Indeed, that works, and the result is much easier to read. Thank You a 
lot for the tip!

PS: Does mail_plugins mail_log mail_log_fiels also support this chaining 
of decoder? If not, a feature wished for… Gonna try tomorrow or next week ;)

-- 
peter