How to dynamically lookup filename?

[Thulasinathan_M]

Hello Splunk Experts,
I've tried below query to use the 'previous_day' field in inputlookup and save it in outputlookup using today and append results if the file for today is not created. But it's not working. Could anyone please correct me on what I'm doing wrong here. Thanks in advance!!

index=test *exception

| [ | eval previous_day="lookup" .strftime(relative_time(now(), "-1d"), "%m%d"). ".csv"
    | inputlookup $previous_day$ ]
| eval today="lookup" .strftime(now(), "%m%d"). ".csv"
| [| inputlookup $today$ 
    | eval is_append= if(isnull(Exception), "append=1", "")]
| stats count by first(_raw) as Exception
| outputlookup $today$ $is_append$

[isoutamo]

Hi

did this help you https://community.splunk.com/t5/Alerting/Alert-when-triggered-Output-results-to-lookup-with-dynamic/... ?

r. Ismo

[Thulasinathan_M]

I checked this post, but will this work in my case with inputlookup/ inputcsv as well. Could you please elaborate..

[isoutamo · Accepted solution]

it works something like this

<our base search here>
| append 
    [| inputlookup 
        [| makeresults 
        | eval search="result_".strftime(relative_time(now(), "-1d"),"%Y_%m_%d").".csv" 
        | table search]] 
| append 
    [| inputlookup 
        [| makeresults 
        | eval search="result_".strftime(now(),"%Y_%m_%d").".csv" 
        | table search]]

| <rest of your data manipulation here>

| outputlookup  
       [| makeresults 
        | eval search="result_".strftime(now(),"%Y_%m_%d").".csv" 
        | table search] 
       [| makeresults
        | eval search = if(isnull(Exception), "append=1", "")
        | table search]

 There could be something what you need to change, but basic idea is here.

[Thulasinathan_M]

Thanks, worked like a charm!! 🙂