Batch create S3 objects

CreateS3Objects.sh

#!/bin/bash
# create a number of objects in the given S3 bucket

set -euo pipefail

COUNT=25
START=0
SOURCE=object
DEST="s3://test-bucket-${RANDOM}-${RANDOM}-${RANDOM}"

echo
echo "Creating bucket: ${DEST}"
echo
aws --profile ${AWS_PROFILE} s3 mb "${DEST}"

touch "${SOURCE}"

i="${START}"
let j="${START}+${COUNT}"
while [[ "$i" -lt "$j" ]] ; do 
    PADDED=$(printf "%04d" "${i}")
    NAME="${DEST}/${SOURCE}-${PADDED}"
    aws --profile "${AWS_PROFILE}" s3 cp "${SOURCE}" "${NAME}" &
    if ! (("${i}" % 10)) ; then
        echo
        echo "waiting at ${i}"
        echo
        wait
    fi
    let i=$i+1
done