Splunk Search

Is it possible to concatenate string with a number using eval?

SumanPalisetty
Path Finder

Hi,

Can we concatenate a string with a number using eval with '.' operator? I got to know that from a video, but when i do it, I am able to do it. I don't know what is going on. Kindly help.

eval1.png

Regards

Suman P.

Labels (1)
Tags (1)
0 Karma
1 Solution

somesoni2
Revered Legend
  • The plus ( + ) operator accepts two numbers for addition, or two strings for concatenation.
  • The period ( . ) operator concatenates both strings and number. Numbers are concatenated in their string represented form.

Check if the field "action" has null values. If it does, whole eval expression will be null. In stead, try like this :

 

 

source= "2access_30DAY.log"
| eval "new_field"=coalesce('action',"Default String Here, change it per your need"). 10 | table "new_field"

 

  

View solution in original post

somesoni2
Revered Legend
  • The plus ( + ) operator accepts two numbers for addition, or two strings for concatenation.
  • The period ( . ) operator concatenates both strings and number. Numbers are concatenated in their string represented form.

Check if the field "action" has null values. If it does, whole eval expression will be null. In stead, try like this :

 

 

source= "2access_30DAY.log"
| eval "new_field"=coalesce('action',"Default String Here, change it per your need"). 10 | table "new_field"

 

  

SumanPalisetty
Path Finder

Sorry, I am being stupid. '.' operator allows concatenation of numeric and alphabets while '+' allows only concatenation of alphabets and numeric.

Regards

Suman P.

0 Karma

ITWhisperer
SplunkTrust
SplunkTrust

For some of your events the action field is null/not present

Get Updates on the Splunk Community!

Dashboards: Hiding charts while search is being executed and other uses for tokens

There are a couple of features of SimpleXML / Classic dashboards that can be used to enhance the user ...

Splunk Observability Cloud's AI Assistant in Action Series: Explaining Metrics and ...

This is the fourth post in the Splunk Observability Cloud’s AI Assistant in Action series that digs into how ...

Brains, Bytes, and Boston: Learn from the Best at .conf25

When you think of Boston, you might picture colonial charm, world-class universities, or even the crack of a ...