using the git plugin to clone a existing repository?

Im wanting to setup a imageboard which recommends you use git to clone it and pull occasionally,

I have set git up in virtualmin but it appears its just for hosting git repositories not for cloning and pulling them.

[quote] The guide for the imageboard script is as follows:

Tinyboard is still beta software and it’s not going to come out of beta any time soon. As there are often many months between releases yet changes and bug fixes are very frequent, it’s recommended that users use our git repository instead. Using git makes upgrading much easier.

To use git, simply clone our git repository with:

% git clone git://github.com/savetheinternet/Tinyboard.git

To pull the latest changes at any time, use:

% git pull

[/quote]

Is this doable in virtualmin or do I need to use the command line on SSH for this? or setup a cron or something to keep it auto updated.