You can use the same flume.conf file and update the keywords according to your wish.Apart from this, you do not have to make any changes.Follow below process:
This will open the existing file. Updates the keywords, save and exit.After this, you can run the flume command.
If you have any documentation on Flume usage please send it across.
Hope this resolves your query
In case of any further issue,feel free to revert.
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