Rename the personal folder into my_files (make sure the folder stays in the Midterm folder).
Assuming that the personal folder is located in the Midterm folder, you can rename it to my_files using the following command:
```
mv ~/Midterm/personal ~/Midterm/my_files
```
This command uses the `mv` command to move the `personal` folder to a new location with the name `my_files`. The `~` symbol represents the home directory of the current user.