ошибка с sudo и без sudo

Я создал виртуальную машину Ubuntu в Azure, но у меня возникла проблема при попытке установить программу. Команда с sudo и без sudo:

ali@Azure:~$ sudo apt-get update
bash: sudo: command not found
ali@Azure:~$  apt-get update
W: chmod 0700 of directory /var/lib/apt/lists/partial failed - SetupAPTPartialDirectory
 (1: Operation not permitted)
E: Could not open lock file /var/lib/apt/lists/lock - open (13: Permission denied)
E: Unable to lock directory /var/lib/apt/lists/E: Could not open lock file /var/lib/dpkg/lock - open (13: Permission denied)
E: Unable to lock the administration directory (/var/lib/dpkg/), are you root?
ali@Azure:~$