root@openstack-controller:~# keystone user-list
Expecting authentication method via
either a service token, --token or env[SERVICE_TOKEN],
or credentials, --os_username or env[OS_USERNAME].
You can get .sh script.
wget https://github.com/OpenStackCookbook/OpenStackCookbook/blob/master/keystone.sh
export OS_TENANT_NAME=admin
export OS_USERNAME=admin
export OS_PASSWORD=admin
export OS_AUTH_URL=http://localhost:5000/v2.0/