Remove specific tags from EC2 instance?

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COUNTER=0
for instance_id in `aws ec2 describe-instances --query "Reservations[*].Instances[*].{Instance:InstanceId}"  --filters "Name=tag:Name,Values=*<common_name>*"  --output text --region <region_name>`
do
let COUNTER++
printf $COUNTER;
echo ". Removing the tag for the instance "$instance_id;
aws ec2 delete-tags --resources $instance_id --tags Key=<Tag_That_needs_Removal>
done;

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