Getting Data In

How do i extract data from my event source filename

pradiptam
Explorer

I have multiple logfiles like TEST_SRC_FR.txt, TEST_SRC_IN.txt, TEST_SRC_AU.txt which are my source files. Now i want to extract the last two letters like "FR" from TEST_SRC_FR.txt.

Any idea how to get them during search time.

Regards,

Pradipta

0 Karma

Richfez
SplunkTrust
SplunkTrust

Sure!

... | rex field=source "(?<LastTwoLetters>..)\.txt$"

That assume they're the literal field source and that they ALWAYS end with "txt".

Modifications can be made for other similar scenarios, but you'll have to be very specific in describing them. 🙂

Happy Splunking,
Rich

pradiptam
Explorer

Thanks its also working, checking which one to use in my program

Regards,
Pradipta

0 Karma

493669
Super Champion

try this run anywhere search:

| makeresults |eval _raw="TEST_SRC_FR.txt"|rex ".*_(?<name>\w{2})"

in your case you can use as

index=<indexname>| rex field=source ".*_(?<name>\w{2})"

also you can make this regex in props.conf

pradiptam
Explorer

Great its working fine for me.

regards,
Pradipta

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!

[Puzzles] Solve, Learn, Repeat: Matching cron expressions

This puzzle (first published here) is based on matching timestamps to cron expressions.All the timestamps ...

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas

Why Splunk Customers Should Attend Cisco Live 2026 Las Vegas     Cisco Live 2026 is almost here, and this ...

Data Management Digest – May 2026

Welcome to the May 2026 edition of Data Management Digest!   As your trusted partner in data innovation, the ...