| Category | Action | windows 🪟 | macOs 🍎 | ubuntu 🐧 |
| Basic Operations | Copy selected item | Ctrl + C | ⌘ + C | Ctrl + C |
| Cut selected item | Ctrl + X | ⌘ + X | Ctrl + X |
| Paste | Ctrl + V | ⌘ + V | Ctrl + V |
| Undo | Ctrl + Z | ⌘ + Z | Ctrl + Z |
| Redo | Ctrl + Y | ⌘ + Shift + Z | Ctrl + Shift + Z lub Ctrl + Y |
| Select all | Ctrl + A | ⌘ + A | Ctrl + A |
| Print | Ctrl + P | ⌘ + P | Ctrl + P |
| Save | Ctrl + S | ⌘ + S | Ctrl + S |
| Context menu | Shift + F10 lub Menu key | – / Control + Return (!) | Shift + F10 lub Menu key |
| Lock PC | Win + L | Ctrl + ⌘ + Q | Super + L |
| Emoji | Win + . | Control + ⌘ + Space | Ctrl + ; |
| Turn off | Ctrl + Alt + Del → Alt + U → U | ⌘ + Option + Control + Power | Ctrl + Alt + Del → Enter |
| Window Management | Switch between open apps | Alt + Tab | ⌘ + Tab | Alt + Tab |
| Close current app | Alt + F4 | ⌘ + Q | Alt + F4 |
| Show/Hide desktop | Win + D | ⌘ + H | Super + D |
| Minimize all windows | Win + M | ⌘ + M | Ctrl + Super + ↓ |
| Restore minimized windows | Win + Shift + M | – | – |
| Minimize/Restore window | Win + ↓ / Win + ↑ | | Ctrl + Super + ↓ / Ctrl + Super + ↑ |
| Mission Control (show all windows) | Win + Tab | Control + ↑ | Super + W (GNOME: Activities) |
| App Exposé (show windows of current app) | | Control + ↓ | Super + A (App overview) |
| Switch Desktops (Spaces) | | Control + → / ← | |
| Taskbar & Start Win | Open/Close Start menu | Win | | Super (open Activities/Launcher) |
| Open taskbar app in position | Win + Number (1–9) | Dock click (snap app) | |
| Focus system tray | Win + B | – | – |
| Task manager | Ctrl + Shift + Esc | – | |
| File Explorer | Open File Explorer | Win + E | ⌘ + Option + D / ⌘ + Shift + H | Super + E (Files/Nautilus) |
| Go to folder | – / Win + R → shell:AppsFolder | ⌘ + Shift + G | Ctrl + L (enter path) |
| Enter to directory | Enter | Option + ↓ | |
| Rename | F2 | Enter | |
| Search & Tools | Open Search | Win + S | ⌘ + Space (Spotlight) | Super (Activities search) |
| Open Settings | Win + I | ⌘ + , (Preferences in app) | Super + S (Settings search) |
| Lock PC / Screen | Win + L | ⌘ + Control + Q / ⌘ + Option + L | Ctrl + Alt + L |
| Force quit app | Ctrl + Shift + Esc (Task Manager) | ⌘ + Option + Esc | xkill (Alt + F2 → xkill) |
| Virtual Desktops | Task View | Win + Tab | Control + ↑ | Super + S / Ctrl + Alt + ↑ |
| Switch desktops | Win + Ctrl + ← / → | Control + ← / → | Ctrl + Alt + ← / → |
| Close desktop | Win + Ctrl + F4 | – | – (via workspace manager) |
| Accessibility | Ease of Access Center | Win + U | System Settings > Accessibility | Settings > Accessibility |
| Zoom in (Magnifier) | Win + + | Control + Option + ⌘ + + | Super + Alt + 8 (toggle zoom) |
| Zoom out (Magnifier) | Win + – | Control + Option + ⌘ + – | Super + Alt + – |
| Exit Magnifier | Win + Esc | Control + Option + ⌘ + 8 (toggle) | Super + Alt + 8 (toggle) |
| Toggle Zoom | | Control + Option + ⌘ + 8 | |
| Zoom in | Win + + | Control + Option + ⌘ + + | Super + + |
| Zoom out | Win + – | Control + Option + ⌘ + – | Super + – |
| Screenshots | Copy screen to clipboard | PrtScn | ⌘ + Shift + 3 | PrtScn (to Pictures folder) |
| Copy active window to clipboard | Alt + PrtScn | ⌘ + Shift + 4 + Space | Alt + PrtScn |
| Save screenshot automatically | Win + PrtScn | ⌘ + Shift + 3 / 4 / 5 / 6 | PrtScn (auto-save in ~/Pictures) |
| Select area to file | – | ⌘ + Shift + 5 | Shift + PrtScn (screenshot tool) |
| Capture specific window | – | ⌘ + Shift + 4 + Space | – |
| Screenshot/Screen recording options | – | ⌘ + Shift + 5 | – |
| Screenshot Touch Bar (if available) | – | ⌘ + Shift + 6 | – |