Tai Lung: gasps The Wuxi finger hold! Po: Oh, you know this hold. Tai Lung: You’re bluffing. You’re bluffing! Shifu didn’t teach you that! Po: Nope. I figured it out. Skidoosh. — [Kung Fu Panda]

bash zsh linux shell file-management bulk-operations parameter-expansion scripting automation unix macos regex pattern-matching