# Backups

Backups: Backups That Work: \`robocopy\`.

Updated: November 10, 2026

1. [Backups That Work: \`robocopy\`](https://www.ask-codey.com/lessons/powershell-robocopy) (Journeyman): robocopy, the copying program that comes with Windows, copies a folder and after that only what changed, mirrors it with /MIR (which deletes from the backup too), rehearses with /L, and ends with an exit code where anything below 8 means success.

Source: https://www.ask-codey.com/courses/powershell-in-depth/topics/powershell-backups