Basic editing

⌘P → Quick Open, Go to File…

⌘X → Cut line (empty selection)

⌘C → Copy line (empty selection)

⌥↓ / ⌥↑ → Move line down/up

⇧⌥↓ / ⇧⌥↑ → Copy line down/up

⇧⌘K → Delete line

⌘Enter / ⇧⌘Enter → Insert line below/above

⇧⌘\ → Jump to matching bracket

⌘K ⌘C → Add line comment

⌘K ⌘U → Remove line comment

⌘/ → Toggle line comment

⇧⌥A → Toggle block comment

⌥Z → Toggle word wrap

⌘L → Select current line

  

Search and replace

⌘F → Find

⌥⌘F → Replace

⌘G / ⇧⌘G → Find next/previous

  

File management

⌘N → New File

⌘O → Open File...

⌘S → Save

⇧⌘S → Save As...

⌥⌘S → Save All

⌘W → Close

⌘K ⌘W → Close All