I'm honestly surprised at all the downvoting for this. It's quite literally a powerful command for linux, and let's be honest, you deserve what you get if you type random crap from the internet into your computer. People who have seen it get a chuckle, people who haven't enhance their erudition. Everyone wins. Perhaps adding a link explaining it would have been in order, but failing to do so doesn't, in my opinion, justify nuking the comment from space.