Getting Data In

How to add constant to HOST name using regular expression

neilli
Engager

I am using a reg-exp to set the host name from the file path
e.g. \servername\logs\application\ag_clientname_log
monitor \servername\logs\application\ag_*
host_regex = (ag_[^_]+)
this gives me "ag_clientname" but I want "clientname_ag_logs" to match what we had previously been collecting.

0 Karma

woodcock
Esteemed Legend

There is no way to do this that I know. I would create a link to each file in a different directory and give each the link the correct name and point the monitor to the other directory. This consumes NO extra disk space (only 1 inode per file).

0 Karma

gcusello
SplunkTrust
SplunkTrust

Hi
You could use also eval
| eval host=substr(host,4,15)+"_ag_logs"

Bye
Giuseppe

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!

[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 ...

Upgrade Prep for 10.4, Network Observability Deep Dives, and More from Splunk Lantern

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