docker-machine rm
卸下机器。这将删除本地引用，并在云提供商或虚拟化管理平台上将其删除。
$ docker-machine rm --help
Usage: docker-machine rm [OPTIONS] [arg...]
Remove a machine
Description:
Argument(s) are one or more machine names.
Options:
--force, -f Remove local configuration even if machine cannot be removed, also implies an automatic yes (`-y`)
-y Assumes automatic yes to proceed with remove, without prompting further user confirmation
例子
$ docker-machine ls
NAME ACTIVE URL STATE URL SWARM DOCKER ERRORS
bar - virtualbox Running tcp://192.168.99.101:2376 v1.9.1
baz - virtualbox Running tcp://192.168.99.103:2376 v1.9.1
foo - virtualbox Running tcp://192.168.99.100:2376 v1.9.1
qix - virtualbox Running tcp://192.168.99.102:2376 v1.9.1
$ docker-machine rm baz
About to remove baz
Are you sure? (y/n): y
Successfully removed baz
$ docker-machine ls
NAME ACTIVE URL STATE URL SWARM DOCKER ERRORS
bar - virtualbox Running tcp://192.168.99.101:2376 v1.9.1
foo - virtualbox Running tcp://192.168.99.100:2376 v1.9.1
qix - virtualbox Running tcp://192.168.99.102:2376 v1.9.1
$ docker-machine rm bar qix
About to remove bar, qix
Are you sure? (y/n): y
Successfully removed bar
Successfully removed qix
$ docker-machine ls
NAME ACTIVE URL STATE URL SWARM DOCKER ERRORS
foo - virtualbox Running tcp://192.168.99.100:2376 v1.9.1
$ docker-machine rm -y foo
About to remove foo
Successfully removed foo