Move list of AWS S3 objects in one bucket to a different storage class

aws_s3_move_storage_class.sh

#!/bin/bash                                                                                                                                                                                                                                          

in_fn=${1}
aws_s3_bucket=${2}
aws_s3_dest_storage_class=${3}

while IFS= read -r line; do
    aws_s3_key=$(echo "${line}" | cut -d'       ' -f1)
    aws_s3_path="s3://${aws_s3_bucket}/${aws_s3_key}"
    echo "Moving [${aws_s3_path}] to storage class [${aws_s3_dest_storage_class}]"
    aws s3 cp ${aws_s3_path} ${aws_s3_path} --storage-class ${aws_s3_dest_storage_class}
done < ${in_fn}

To get a list of objects in the STANDARD storage class:

$ aws s3api list-objects --bucket ${bucket} --query 'Contents[?StorageClass == `STANDARD`].[Key,StorageClass]' --output text > ${bucket}.standard.txt

To move STANDARD objects to the INTELLIGENT_TIERING storage class:

$ ./aws_s3_move_storage_class.sh ${bucket}.standard.txt ${bucket} INTELLIGENT_TIERING
...