Lab 3.2- Git clone command

Hi,

After performig, SSH compute node, sudo apt-get update and sudo apt-get install git vim command,

I am getting this error message when trying to issue the git cone command to compute-node.

root@compute-node:~# git clone https:://git.openstack.org/openstack-dev/devstack -

Cloning into '-'...

fatal: unable to access '//git.openstack.org/openstack-dev/devstack/': <url> malform

ed

root@compute-node:~# b stable/newton

b: command not found

root@compute-node:~# git clone https:://git.openstack.org/openstack-dev/devstack -

Cloning into '-'...

fatal: unable to access '//git.openstack.org/openstack-dev/devstack/': <url> malform

ed.

Any suggestions, what is the issue and how can be resolved?

Thanks,