$ cubic snapshot --help
Create a snapshot of a VM instance
A snapshot saves the disk of a VM instance so it can be restored later with
`cubic restore`. The VM instance has to be stopped first. Snapshots of the
same instance share every block that did not change, so keeping several of
them stays cheap.
The settings of a VM instance, such as CPUs, memory and forwarded ports, are
not part of a snapshot and are never rolled back.
Examples:
Snapshot the VM instance 'my-instance' as 'clean':
$ cubic snapshot my-instance/clean
Usage: cubic snapshot [OPTIONS] <INSTANCE/SNAPSHOT>
Arguments:
<INSTANCE/SNAPSHOT>
Snapshot of a virtual machine instance, written as <INSTANCE>/<SNAPSHOT>
Options:
-v, --verbose
Increase logging output
-q, --quiet
Reduce logging output
-h, --help
Print help (see a summary with '-h')