# Reference

Look up commands, options, transfer behavior, and the results a calling product receives.

- [Command reference](https://developer.wordpress.org/reprint/reference/commands/)
- [Authentication](https://developer.wordpress.org/reprint/reference/authentication/)
- [Preflight](https://developer.wordpress.org/reprint/reference/preflight/)
- [File transfers](https://developer.wordpress.org/reprint/reference/file-transfers/)
- [Database transfers](https://developer.wordpress.org/reprint/reference/database-transfers/)
- [Runtime configuration](https://developer.wordpress.org/reprint/reference/runtime/)
- [Progress, results, and exit codes](https://developer.wordpress.org/reprint/reference/progress-and-results/)
- [Temporary failures and retries](https://developer.wordpress.org/reprint/reference/temporary-failures/)