@nishank_paras    You can use the invokeHTTP processor to fetch your file.  Here is an example: The above example fetches the Apache nifi-toolkit-1.11.3-bin.tar.gz file. You can then construct a dataflow using other processors to manipulate as you want or simply just connect to another invokeHTTP processor that instead of "GET" uses "PUT" to put your file "nn.csv" at the new http endpoint.   Hope this helps you, Matt   ... View more

@nishank_paras    Let's assume your input FlowFile content looks like this: Date, IP, Description 01-30-2020, 10.0.0.1, server1 01-30-2020, 10.0.1.2, server2 01-30-2020, 10.0.3.4, server3 01-30-2020, 10.0.4.6, server4 01-30-2020, 10.0.10.2, server5   You would configure your ReplaceText processor as follows: The Search Value contains a java regular expression which will match on your entire line and uses one capture group.   The Replacement Value says to replace everything matched by the Search Value Regex with only the value from capture group 1.  We then configure ReplaceText to evaluate that Regex against each line. The resulting FlowFile output to the success relationship will have content that looks like this: IP 10.0.0.1 10.0.1.2 10.0.3.4 10.0.4.6 10.0.10.2 Hope this helps, Matt ... View more