muhannad0/aws-cli-scripts.md

## aws-cli-scripts.md

      
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              aws-cli-scripts.md
            
          
    AWS CLI scripts for quick tasks

Get all the EC2 instances with a specific Name tag, and add/update tags on those resources

aws ec2 describe-instances --query 'Reservations[*].Instances[*].[InstanceId, Tags[?Key==`Name` && starts_with(Value, `dev`)]]' --output json | jq -r '.[][] | select(.[1] | length > 0) | .[0]' | \
while read instance_id; do
  aws ec2 create-tags --resources "$instance_id" --tags Key=Environment,Value=development
done

jq used to filter out resources that have empty tags and only output the instance ID.