You have two ways of accessing the console from the web. The first is using the hover console, as seen at the bottom of every page in rhub:
To access, simply click the left symbol, which will bring the console into view. Clicking the symbol again will hide the console. Type in a command and click 'send'. The result is shown above the text box.
Note: If you are using Internet Explorer, the console will be visible at all times. Also sometimes the console may appear in the wrong place. Resizing your browser window will normally fix that up.
The other way to access the console is using the full-screen version, accessible by clicking 'Full console' from the box at the bottom of every rhub page. Type in a command into the textbox, and click the enter key on your keyboard. The command you typed, and the result is shown in the history box.
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