ben

Just yesterday I was trying to achieve this in Rails, with a SVG or PNG in a link. I ended up using one of the last two options suggested here: http://www.webdesign.org/html-and-css/tutorials/ways-to-embed-a-clickable-svg-logo-into-your-website.21984.html

If you're using RVM, see:
https://rvm.io/gemsets/emptying/

I use screen, so can normally scroll up a bit, but I imagine this will go all the way back to the beginning of captured output rather than the scroll-back buffer. Neat!

You can use the last command with two exclamation marks. It also outputs the full command with the exclamation marks replaced, just to show you. Below is an example with whoami executed by the user seawolf:

$  whoami
seawolf

$ sudo !!
sudo whoami
[sudo] password for seawolf: **********
root