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AWS CLI · Amazon Web Services

aws s3 sync — JSON output

Return AWS CLI output as JSON. Base task: Synchronize a directory with S3.

Copy-ready commandaws s3 sync — JSON output
aws s3 sync /data s3://my-bucket/data --delete --output json
Production warning

Start, stop, reboot, sync --delete, and write operations can affect production resources.

Requirements and permissions

Requirements
AWS CLI v2
Permissions
AWS IAM permissions vary
Last reviewed
2026-08-01

Examples

JSON output

Return AWS CLI output as JSON.

aws s3 sync /data s3://my-bucket/data --delete --output json

Common errors

Command or option not supported

Confirm the installed platform version supports the base command and the added output or wrapper option.

Access denied or insufficient privileges

Run with the administrative role or delegated permission required by the underlying command.