How to use curl API curl -X GET -u elastic:elastic http://elasticsearchprd.vbox.com/_cat/shards | grep -i "UNASSIGNED" from the REST client tool

Hi,
How can I use this curl command curl -X GET -u elastic:elastic http://elasticsearchprd.vbox.com/_cat/shards | grep -i "UNASSIGNED" in any of the REST client tool such as POSTMAN or anything else. If any one come across such kind of query please suggest. I know Kibana --> DevTool option is available but I want to use some linux utility along with those REST API commands

You can't, because Postman doesn't support the grep command like that