Truncate all keys in a dynamodb table

truncate_dynamodb.sh

#!/bin/bash

TABLE_NAME=$1

# Get id list
aws dynamodb scan --table-name $TABLE_NAME | grep ID | awk '{ print $2 }' > /tmp/truncate.list

# Delete from id list
cat /tmp/truncate.list | xargs -IID aws dynamodb delete-item --table-name $TABLE_NAME --key '{ "id": { "S": "ID" }}'

# Remove id list
rm /tmp/truncate.list

aws dynamodb scan --table-name "$TABLE_NAME" | jq -c '.Items[]' | \
    xargs -L1 -I{} -0 aws dynamodb delete-item --table-name "$TABLE_NAME" --key '{}'

See --select SPECIFIC_ATTRIBUTES in aws dynamodb scan help to tune the key.