Ubuntu11.10 do not know the shortcut key

Ubuntu11.10 do not know the shortcut key Super (windows icon key) tap open tray Super + A open application tray Super + F open file and folder tray Super + W tile mode list all windows Super + S browsing mode, zoom out all work zones ,...
Super (windows icon key) click open tray Super + A open application tray Super + F open files and folder tray Super + W tile mode list all windows Super + S browsing mode, zoom out all work zones, let your management window Super + T open the recycle bin www.2cto.com Alt + Tab switch Alt + F2 in different program Windows like Windows Win + R combination key, run the application Alt + F4 in GNOME to close the window Alt + F5 to cancel the maximization window (restore the original size of the window) Alt + F7 to move the window (note: The window is invalid when the window is maximized) alt + F8 change the window size (note: it is invalid when the window is maximized) alt + F9 minimize window Alt + F10 maximize window Alt + Space open the control menu of the window (click the menu that appears in the icon in the upper left corner of the window) printScreen full screen screenshot Alt + PrintScreen current window screenshot www.2cto.com Ctrl + Alt + L Lock desktop, the difference is that the screen saver Ctrl + Alt + Del is enabled at the same time and the Ctrl + Alt + D key combination is canceled from the current user, display desktop Ctrl + Alt + Left/Right/Up/Down switch Ctrl + Alt + Shift + Left/Right/Up/Down between different Workbench move current window to different Workbench Ctrl + Alt + F1-F6 into the full screen terminal Ctrl + Alt + F7 return graphical interface Ctrl + N new window Ctrl + X cut Ctrl + C copy Ctrl + V paste Ctrl + Z undo the previous operation Ctrl + Shift + Z /Ctrl + Y redo the undo step operation Ctrl + S save Ctrl + B bookmarks Ctrl + H show hidden file Ctrl + T new tag Ctrl + W close tag Ctrl + Page Up previous tag Ctrl + Page Down next tag Alt + N switch to nth tag www.2cto.com use in terminal: ctrl + a-jump to the beginning of the line Ctrl + B-move one character to the left Ctrl + c-terminal process Ctrl + d-delete Ctrl + e from the cursor to the right-jump to the end of the line Ctrl + f- move one character to the right Ctrl + k-delete the part from the cursor to the end of the line Ctrl + u-delete the part from the cursor to the beginning of the line Ctrl + l-clear screen, similar to the clear command Ctrl + r-query history Command