Splunk Search

Help with JSON regex replace

ballen1
Explorer

Command:

rex mode=sed "s/\"name":\s\"[^\"]+\"/"name":"###############"/g"

Regex seems to work fine in Regex101 

However, I seem to continue to get this error:

Error in 'SearchParser': Missing a search command before '^'. Error at position '69' of search query rex mode=sed "s/\"c...{snipped} {errorcontext = n_id"\s\"[^\"]+\"/"co}'.

I'm trying to mask a json key:value pair.  See below:

"name": "john doe" ----> "name": "######"
Labels (1)
0 Karma

danielcj
Communicator

Hello,

It is missing a \ after the name and before the ".

The correct one is:

| rex mode=sed "s/\"name\":\s\"[^\"]+\"/"name":"###############"/g"

ballen1
Explorer

Thank you for this.  For some reason I had to add a few more \ to make this work.  See below:

“s/\”name\”\:\”[^\”]+\”/\”name\":\"###############\"/g"

0 Karma

ballen1
Explorer

Hello,

Thank you for the reply.  That removed that error.  However, it still doesn't mask the "name" field in the search.

"name" still shows as:  

"name": "john doe"

 

0 Karma

ballen1
Explorer

ah.  I figured it out.  I had to modify it like the following for it to replace properly:

“s/\”name\”\:\”[^\”]+\”/\”name\":\"###############\"/g"

This is using splunk cloud btw.

Tags (1)
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!

Cisco Data Fabric from Architecture to Investigation, Better SOC Visibility, and More ...

Splunk Lantern is Splunk’s customer success center that provides practical guidance from Splunk experts on key ...

The Trust Gap: Why a Data Foundation is Fundamental to an Agentic Enterprise

The Trust Gap: Why a data foundation is fundamental to an  Agentic Enterprise.   Agentic AI is transforming ...

Data Management Digest – September 2026

    Welcome to the September 2026 edition of Data Management Digest! September brought a fresh wave of ...