Copy files from one Amazon S3 bucket to another
Amazon S3 is a cheap object storage service from Amazon AWS. You can use aws-cli to copy files between S3 buckets. To install aws-cli, check post How to Install Amazon AWS awscli.
To copy files from one Amazon S3 bucket to another, you can use the command
aws s3 sync "s3://source-bucket-name/" "s3://destination-bucket-name/"
If you only need to copy a folder in the bucket to another, use
aws s3 sync "s3://source-bucket-name/folder_name/" "s3://destination-bucket-name/folder_name/"
if you only need to copy a file, you can use
aws s3 cp "s3://source-bucket-name/filename.extn" "s3://destination-bucket-name/"
See Amazon S3