centos如何卸载docker

[root@localhost ~]# yum list installed|grep docker

[root@localhost ~]# rpm -qa|grep docker 
docker.x86_64 2:1.12.6-16.el7.centos @extras 
docker-client.x86_64 2:1.12.6-16.el7.centos @extras 
docker-common.x86_64 2:1.12.6-16.el7.centos @extra

[root@localhost ~]#yum –y remove docker.x86_64 
[root@localhost ~]#yum –y remove docker-client.x86_64 
[root@localhost ~]#yum –y remove docker-common.x86_64

[root@localhost ~]# rm -rf /var/lib/docker

[root@localhost ~]# rm -rf /var/lib/docker 
[root@localhost ~]#