How to non-interactively install and configure the CloudWatch Logs agent on an EC2 Ubuntu instance using a shell script？

Hello.

If you use the "-n" option, you must specify the configuration file using the "-c" option.
https://docs.aws.amazon.com/AmazonCloudWatch/latest/logs/EC2NewInstanceCWL.html

#!/bin/bash
curl https://s3.amazonaws.com/aws-cloudwatch/downloads/latest/awslogs-agent-setup.py -O
chmod +x ./awslogs-agent-setup.py
./awslogs-agent-setup.py -n -r us-east-1 -c s3://DOC-EXAMPLE-BUCKET1/my-config-file

Additionally, since the CloudWatch Logs agent is being deprecated, we recommend using the CloudWatch Agent to configure log output settings.
https://docs.aws.amazon.com/AmazonCloudWatch/latest/monitoring/download-cloudwatch-agent-commandline.html#download-CloudWatch-Agent-on-EC2-Instance-commandline-first