```
sfdisk --delete $disk

```

From Ubuntu 18.04 or later works. What is the equivalent command in Ubuntu 16.04 LTS?

[Ubuntu 16.04 LTS (--delete missing)](http://manpages.ubuntu.com/manpages/xenial/man8/sfdisk.8.html), 

[Ubuntu 18.04 LTS (--delete present)](http://manpages.ubuntu.com/manpages/bionic/man8/sfdisk.8.html)