# Help extracting logs from message field with /t delimiter **URL:** \ **Category:** Logstash\ **Created:** [November 4, 2022, 6:11pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212 "2022-11-04T18:11:41Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![RaonyO](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@RaonyO](https://discuss.elastic.co/u/RaonyO)\ **Post date:** [November 4, 2022, 6:11pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212/1 "2022-11-04T18:11:41Z")
hello, I would like to know how I can extract the fields from this log, using grok or another way, I've tried with grok but I completely messed up, the question is how can i separate the fields with the /t delimiter? I even created a mapping based on this log on how the fields would look. ```auto Timestamp --> Nov 3 21:45:10 Mta_name --> xxx009148 log_type --> msgtra.imss[26101]: NormalTransac InTimeStamp --> 2022 Nov 3 21:43:35 -03:00 ScanTimeStamp --> 2022/11/03 21:43:35 -03:00 OutTimeStamp --> 2022 Nov 3 21:44:07 -03:00 Message_ID --> 654717088.24251667522701369.xxxx.xxxxx@xxxx.xxx.xxx.xxx.br Internal_Message_ID --> xxxxx-EC9A-5D05-9E9E-xxxxxx Postfix_ID --> xxxxx40EF Scanner_ID --> 1 Sender --> xxxx.xxx.xxxx@xxx.xxxx.xxxx.br recipient --> recipient1@xxxxxxx.com.br;recipient2@exxxxx.xxx.br Subject --> ***TESTE/PE - xxxx xxx xxxxxx (Carga:xxxxxx; Veiculo:xxxxx)*** Client_IP --> xxxx.xx.xx.217 Delivery_IP --> mail.teste.com.br[186.248.133.196]:25 Delivery_feedback --> 250 2.0.0 Ok: queued as 68F676046032F Delivery_status --> sent Action --> 00100000000000000 Split_flag --> 0 Extra_Item --> "" ToDeliveryTimeStamp --> 2022 Nov 3 21:43:35 -03:00 InDeliveryTimeStamp --> 2022 Nov 3 21:43:35 -03:00 ``` and here's a log sample ```auto <135>Nov 3 21:45:10 sf009148 msgtra.imss[26101]: NormalTransac\t2022 Nov 3 21:43:35 -03:00\t2022/11/03 21:43:35 -03:00\t2022 Nov 3 21:44:07 -03:00\t654717088.24251667522701369.JavaMail.fronteiras@sf063693.xxxx.xx.xxxx.br\tDB2BF6D2-xxxxxxxxx-685CE9Axxxxx\tCB66A640EF\t1\xxx.xxxx.fronteiras@xxx.xxxx.xxx.br\xxxxx@expressonxxxxxx.com.br;xxxxio@xxxxxxxuceno.com.br\t***xxxx/PE - Liberacao de Carga (Carga:xxxx56; Veiculo:xxxxx9)***\t172.16.12.217\tmail.xxxxxxxmuceno.com.br[186.248.133.196]:25\t250 2.0.0 Ok: queued as 68F676046032F\tsent\t00100000000000000\t0\t\t2022 Nov 3 21:43:35 -03:00\t2022 Nov 3 21:43:35 -03:00\t\t3\t ``` ---
**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\ **Post date:** [November 4, 2022, 6:40pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212/2 "2022-11-04T18:40:25Z")
> [@RaonyO](#): > > `<135>Nov 3 21:45:10 sf009148 ` I would suggest using grok to parse that part of the message, then use a csv filter with the separator set to \t to parse the rest. Something like ``` grok { pattern_definitions => { "TIMESTAMP" => "%{NOTSPACE}%{SPACE}%{NOTSPACE}%{SPACE}%{NOTSPACE}" } match => { "message" => "<%{NUMBER}>%{TIMESTAMP:Timestamp} %{WORD:Mta_name} %{GREEDYDATA:[@metadata][restOfLine]}" } } csv { source => "[@metadata][restOfLine]" separator => " " columns => ["log_type", "InTimeStamp", "ScanTimeStamp", "OutTimeStamp", "Message_ID"] } } ``` I'll leave you to add in the rest of the column names... ---
**Author:** ![RaonyO](https://avatars.discourse-cdn.com/v4/letter/r/5fc32e/32.png) [@RaonyO](https://discuss.elastic.co/u/RaonyO)\ **Post date:** [November 4, 2022, 7:29pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212/3 "2022-11-04T19:29:58Z")
hello @Badger !, I tried to perform this parse through the dissect filter, but it's not working, can you tell me if there's something wrong with the structure of my filter? ```auto filter { if "imsva" in [tags] { dissect { mapping => { "message" => "%{eventtimestamp}\t%{intimestamp}\t%{ScanTimeStamp}\t%{OutTimeStamp}\t%{Message_ID}\t%{Internal_Message_ID}\t%{Postfix_ID}\t%{Scanner_ID}\t%{Sender}\t%{Recipient}\t%{Subject}\t%{Client_IP}\t%{Delivery_IP}\t%{Delivery_feedback}\t%{Delivery_status}\t%{Action}\t%{Split_flag}\t%{Extra_Item}\t%{ToDeliveryTimeStamp}\t%{InDeliveryTimeStamp}" }} } } ``` ---
**Author:** ![Badger](https://sea2.discourse-cdn.com/elastic/user_avatar/discuss.elastic.co/badger/32/25190_2.png) [@Badger](https://discuss.elastic.co/u/Badger)\ **Post date:** [November 4, 2022, 7:50pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212/4 "2022-11-04T19:50:03Z")
dissect does not use regexps. You need literal tabs in your mapping. ---
**Author:** ![system](https://us1.discourse-cdn.com/elastic/original/3X/1/a/1ac57faf039f6b580b3f104ef42a2a89e41014de.png) [@system](https://discuss.elastic.co/u/system)\ **Post date:** [December 2, 2022, 7:50pm UTC](https://discuss.elastic.co/t/help-extracting-logs-from-message-field-with-t-delimiter/318212/5 "2022-12-02T19:50:10Z")
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