1- Nova
root@vse2100-11:~# nova list vm
usage: nova [--version] [--debug] [--os-cache] [–timings]
[--timeout <seconds>] [--os-auth-token OS_AUTH_TOKEN]
[--os-username <auth-user-name>] [--os-user-id <auth-user-id>]
[--os-password <auth-password>]
[--os-tenant-name <auth-tenant-name>]
[--os-tenant-id <auth-tenant-id>] [--os-auth-url <auth-url>]
[--os-region-name <region-name>] [--os-auth-system <auth-system>]
[--service-type <service-type>] [--service-name <service-name>]
[--volume-service-name <volume-service-name>]
[--endpoint-type <endpoint-type>]
[--os-compute-api-version <compute-api-ver>]
[--os-cacert <ca-certificate>] [--insecure]
[--bypass-url <bypass-url>]
<subcommand> ...