aws-s3-sync 命令

常用示例

说明

aws s3 sync synchronizes directories and S3 prefixes by recursively copying new and updated files from the source to the destination. It only transfers files that are new or have changed, making it efficient for incremental backups and deployments. By default, sync compares file size and last modified time to determine which files need updating. It creates folders in the destination only if they contain files.

参数

--delete

Delete destination files that don't exist in the source

--dryrun

Display operations that would be performed without executing them

--quiet

Suppress all output except errors

--no-overwrite

Only transfer files not present at the destination

--size-only

Use file size alone to determine if sync is needed (ignore timestamps)

--exact-timestamps

Match timestamps exactly when syncing from S3 to local

--include _pattern_

Include files matching the pattern

--exclude _pattern_

Exclude files matching the pattern from the sync

--acl _value_

Set access control list: private, public-read, etc.

--storage-class _value_

Specify storage class: STANDARD, STANDARD_IA, GLACIER, etc.

--source-region _value_

Source bucket region (required for cross-region S3 to S3 sync)