The user to whom the file should be

The user to whom the file should belong. Argument can be a user name or a user ID.

On Windows, a group (such as “Administrators”) can be set as a file’s owner and a user (such as “Administrator”) can be set as a file’s group; however, a file’s owner and group shouldn’t be the same. (If the owner is also the group, files with modes like 0640 will cause log churn, as they will always appear out of sync.)