How to run pip commands from command line?

I’m trying to install a custom component/module (pyalarmdotcomajax) and was told to “install this from the command line using pip”.

Can somebody please explain how to do this?

I’ve installed the “Terminal & SSH” add-on and configured my access. I am using PuTTy to SSH into the VM of Hassio - I can log into successfully.

When I try to run a pip command, I get this error:

-bash: pip: command not found