I would like to save the CSV file to an external location. I am using the |outputcsv command which is saving the file to a Linux but I need the file to be picked up from there and move to external location such as WVDCCRVFASS\ETL\FlatFiles\Splunk.
Can you please all let me know how can this be done?
It's not really a Splunk solution. You write a shell script that copies a file from one place (Splunk) to another (the external directory) then use cron to run the script some time after the Splunk job is scheduled to create the file.
See https://opensource.com/article/17/11/how-use-cron-linux for a good introduction to cron.