git push origin will send any files one has commited locally to the mast server (eg github).
That is a simplistic explanation however.
git status is handy as it will give you an idea of the, umm, status of the files you are working with…
In an application I am working on I needed to pass the ID of an object to the new action of a controller. This ID was the id of an object the new object would be linked to.
Now creating the link as /controller/object_id called the show method (as this is a standard restful route). What I wanted to do was do something like /controller/new/object_id , but that isn’t a valid route.
What I had to do was create a custom route to make this work.
So in my routes.rb file I added a line like this:
map.new_object '/controller/new/:object_id', :controller => 'controller', :action => 'new'
now in my new action I can access the passed in id as params[:object_id]