There are many keyboard shortcuts built in to Ubuntu and Mint. Here are some useful ones..
Desktop keys
- Alt + F1 - Open the Application menu
- Alt + F2 - Open the Run Application dialog box
- Ctrl + Alt + Delete - Reboot without saving
- Ctrl + Alt + Left/Right/Up/Down - Move view between desktops
- Ctrl + Alt + L - Lock screen
- PrtScr - Screen capture
- Shift + F10 - Open local (right-click) menu
Window keys
- Alt + F4 - Close the currently selected window, if there is one
- Alt + F5 - Restore the current window to normal size
- Alt + F7 - Restore current window and allow it to be moved with the mouse or cursor keys
- Alt + F8 - Allow current normal window to be resized with the mouse or cursor keys
- Alt + F9 - Minimize current window
- Alt + F10 - Maximize current window
- Alt + Space - Open current window’s main menu
- Alt + PrtScr - Screen capture current window
- Alt + Tab - Move between application windows
- Shift + Alt + Tab - Move between application windows in reverse
- Shift + Alt + Up - Initiate window picker
- Shift + Ctrl + Alt + Left/Right/Up/Down - Move current window between desktops
- Ctrl + Alt + D - Minimise all windows and focus on desktop
- A.