Windows PowerShell is probably best-known for its ability to allow Windows admins to operate at scale. For instance, it would take forever to create a thousand user accounts through the GUI, but ...

Launch multiple apps at once, clear temporary files, and more.

Ever deleted a file or folder on a file server and didn't mean to? Yea, me neither. But if you did, what would you do about it? Maybe you'd break out the backup tape or perhaps perform the restore ...