./aws_s3_curl.sh NameOfS3Bucket AccessKeyID SecretKey /path/to/file
NameOfS3Bucket
Specify the name your S3 bucket. For example to upload a new file to your website www.example.com then the name of the bucket is www.example.com
AccessKeyID
Specify the Access Key ID of the user and the group you created in IAM that allows uploading new files to your S3 bucket.
SecretKey
Specify the Secret Key that's associated with the Access Key ID. You may have to create a new Access Key ID to see its Secret Key.
/path/to/file
Specify the absolute path to a single file to be uploaded to your S3 bucket.