aws-dynamo-table-copy.sh

#!/usr/bin/env bash

PROFILE=yourFavoriteAwsProfile
REGION=us-east-1

TABLE=origin-table
DEST_TABLE=destination-table

TABLE_DUMP=$(aws dynamodb scan --profile ${PROFILE} --region ${REGION} --table-name ${TABLE})
TABLE_Items=`echo ${TABLE_DUMP} | jq -r '.Items'`
TABLE_ScannedCount=`echo ${TABLE_DUMP} | jq -r '.ScannedCount'`
TABLE_Count=`echo ${TABLE_DUMP} | jq -r '.Count'`
TABLE_LastEvaluatedKey=`echo ${TABLE_DUMP} | jq -r '.LastEvaluatedKey'`

echo "TABLE_ScannedCount: ${TABLE_ScannedCount}"
echo "TABLE_Count: ${TABLE_Count}"
echo "TABLE_LastEvaluatedKey: ${TABLE_LastEvaluatedKey}"

# iterate over TABLE_Items
for index in $(seq 0 $((TABLE_Count - 1))); do
    projectId=`echo ${TABLE_Items} | jq -r ".[${index}].projectId.S"`
    echo "working on project id: ${projectId}"

    echo ${TABLE_Items} | jq -r ".[${index}]" > itemData.json
    aws dynamodb put-item --profile ${PROFILE} --region ${REGION} --table-name ${DEST_TABLE} --item file://itemData.json
done

rm itemData.json