Use of jq in aws cli

I wrote a post with use of query option in aws cli for filtering.
Another powerful approach for filtering is jq.

jq is resourceful and helps in getting all the operations done, which query options fails

for example, I was struggling to pass a shell variable to cli command which I was able to do though jq

below command lets me get the exact name of the emr cluster and passing cluster ID as shell variable.

aws emr list-clusters --region $region |jq -r --arg cid "$cid"  '.Clusters[] | select(.Id == $cid ) | .Name'


Example to query the instaances tag

aws ec2 describe-instances  --region us-east-1 --instance-ids i-02426396b622c2b23   2> /dev/null | jq -r '.Reservations[].Instances[].Tags[] | select(.Key=="owner") | .Value'