I accidentally deleted the sources.list file from my Ubuntu VM running on a Google Compute Engine instance.
As Amazon Web Services, they also have their own optimized sources.list. I need an original unmodified one, please.
UPDATE: According to Giacomo1968’s answer, there should be a backup of the sources.list in the /etc/apt/ named sources.list.save but I checked couldn’t find that file in my install:
$ ls -la
total 64
drwxr-xr-x 6 root root 4096 Sep 17 21:06 .
drwxr-xr-x 100 root root 4096 Sep 17 21:22 ..
drwxr-xr-x 2 root root 4096 Sep 9 06:54 apt.conf.d
drwxr-xr-x 2 root root 4096 Apr 7 14:44 preferences.d
-rw-r--r-- 1 root root 592 Sep 17 21:20 sources.list
drwxr-xr-x 2 root root 4096 Sep 2 07:40 sources.list.d
-rw-r--r-- 1 root root 17481 Sep 17 21:06 trusted.gpg
-rw-r--r-- 1 root root 12335 Sep 2 07:17 trusted.gpg~
drwxr-xr-x 2 root root 4096 Apr 7 14:44 trusted.gpg.d