AWS S3 CLI

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AWS CLI S3 Commands

Using the AWS CLI to query S3 for bucket or folder statistics.

List buckets in account with s3api

aws s3api list-buckets --query "Buckets[].Name"

List bucket size with s3api

aws s3api list-objects --bucket svcostaffbackup --output json --query "[sum(Contents[].Size), length(Contents[])]"

List objects in bucket with totals

aws s3 ls --summarize --human-readable --recursive s3://<bucket_name>/

List summary of specific folder within a bucket

aws s3 ls --summarize --human-readable --recursive s3://<bucket_name>/<folder_name> | Select-String -Pattern Total

List bucket size by polling CloudWatch metrics

aws cloudwatch get-metric-statistics --namespace AWS/S3 --dimensions Name=BucketName,Value=svcostaffbackup Name=StorageType,Value=StandardStorage --metric-name BucketSizeBytes --start-time 2019-10-30T00:00:00 --end-time 2019-10-31T00:00:00 --period 86400 --statistics Average --unit Bytes

List multipart uploads

aws s3api list-multipart-uploads --bucket svcostaffbackup

Summarize Folder Total

aws s3 ls --summarize --human-readable --recursive s3://<bucket_name>/<folder_name> | Select-String -Pattern Total