It's great seeing all of these commands and shortcuts, and seeing that you know a lot of them. These never cease to be useful.
Even though it seems simple to someone who knows Linux, you can always impress marketing/business people by flying through Linux with these helpful commands, shortcuts, and tips.
You've got bigger issues if you've got marketing people looking over your shoulder while you're looking through grep's output. (And I doubt they care much about your Linux wizardry, that's why they're in marketing.)
Even though it seems simple to someone who knows Linux, you can always impress marketing/business people by flying through Linux with these helpful commands, shortcuts, and tips.