Splunk Search

skip step in foreach

spisiakmi
Contributor

Hi, any help, please?

Here is the code

| makeresults
| eval tmp_1=1
| eval tmp_2=""
| eval tmp_3=3
| eval tmp=""
| foreach tmp_*
[| eval tmp = tmp ."|".if(isnotnull(<<FIELD>>),<<FIELD>>,"")]
| eval tmp=substr(tmp, 2)
| table tmp

Output is: tmp=1||3

I would like to have output tmp="1|3", it means how to skip the step in foreach, if the <<FIELD>> is null?

Labels (1)
0 Karma
1 Solution

livehybrid
SplunkTrust
SplunkTrust

Hi @spisiakmi 

I dont think your isnotnull is matchnig as you expect on "", try this:

| makeresults
| eval tmp_1=1
| eval tmp_2=""
| eval tmp_3=3
| eval tmp=""
| foreach tmp_*
[| eval tmp = tmp.if(<<FIELD>>!="",<<FIELD>>."|","")]
| eval tmp=trim(tmp,"|")
| table tmp

 

View solution in original post

livehybrid
SplunkTrust
SplunkTrust

Hi @spisiakmi 

I dont think your isnotnull is matchnig as you expect on "", try this:

| makeresults
| eval tmp_1=1
| eval tmp_2=""
| eval tmp_3=3
| eval tmp=""
| foreach tmp_*
[| eval tmp = tmp.if(<<FIELD>>!="",<<FIELD>>."|","")]
| eval tmp=trim(tmp,"|")
| table tmp

 

spisiakmi
Contributor

livehybrid thank you very much, simple, easy, fast. Very good.

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi @spisiakmi ,

please try this:

| makeresults
| eval tmp_1=1
| eval tmp_2=""
| eval tmp_3=3
| eval tmp=""
| foreach tmp_*
[| eval tmp = tmp ."|".if(isnotnull(<<FIELD>>),<<FIELD>>,"")]
| eval tmp=substr(tmp, 2)
| rex field=tmp mode=sed "s/\|+/|/g"
| table tmp

Ciao.

Giuseppe

 

spisiakmi
Contributor

Hey gcusello, thank you very much.

0 Karma
Got questions? Get answers!

Join the Splunk Community Slack to learn, troubleshoot, and make connections with fellow Splunk practitioners in real time!

Meet up IRL or virtually!

Join Splunk User Groups to connect and learn in-person by region or remotely by topic or industry.

Get Updates on the Splunk Community!

Monitoring AI Agents with Splunk Observability Cloud

Let’s say I’m running a travel planning AI app in production. A user asks for three concise hotel options in ...

[Puzzles] Solve, Learn, Repeat: Tiling

This puzzle (first published here) is based on finding groups of tessellated tiles (inspired by floor tiles I ...

SOK it to Me: Top 3 Benefits of Using Splunk Operator on Kubernetes that’ll Make ...

    Thursday, July 9, 2026  |  11:00AM–12:00PM PDT Duration: 1 hour (includes Q&A) Managing can feel like a ...