Mistyped command: sudo nano / -name "supervisor" Instead of using `sudo find / -name "supervisor"` I ran `sudo nano / -name "supervisor"` by mistake, which looked like it opened a blank nano file before I hit `CRTL-X`... $ sudo nano / -name "supervisor" Use "fg" to return to nano. [1]+ Stopped sudo nano / -name "supervisor" The operating system is Ubuntu 16.04. Does anyone have any idea what it was trying to do? I mainly want to know if I have messed anything up on the server. Thank you.

The command would have started the `nano` editor and instructed it to edit the root directory. `nano` would have complained with a `[ "/" is a directory ]` message. No files would have been changed.