Support systems without sudo

I recently installed a new debian12. It comes without sudo and thus no `/etc/sudoers` file. I'm usually logging into root to execute sudo commands and not add users to the sudo group. I'm not a linux/security expert thus I don't know if this is the best way but that's how I do it.

The scrips fails:

```
grep: /etc/sudoers: No such file or directory
```