Here is the shortcut key under GNOME. In fact, I use less kde and Xfce...
General shortcuts
Alt + F1 is similar to the Windows Win key. Open the "application" menu (Applications) in GNOME)
Alt + F2 is similar to Win + R keys in Windows, and runs applications in GNOME
Ctrl + Alt + D is similar to the Windows Win + D key combination, display desktop!
Ctrl + Alt + L lock the desktop and start the Screen Saver
Alt + Tab is the same as the Alt + Tab combination key in Windows, switching between different program Windows
PrintScreen full screen capture
Alt + PrintScreen capture of current window
Ctrl + Alt + →/← switch between different workstations
Ctrl + Alt + Shift + →/← Move the current window to different workstation
Ctrl + Alt + Shift + Fn terminal N or analog terminal N (n and N are numbers 1-6)
Ctrl + Alt + F7 return to desktop
Ctrl + Alt + Shift + F8 unknown (terminal or analog Terminal)
Window operation shortcut
Alt + F4 close the window
Alt + F5 Cancel to maximize the window (restore the original size of the window)
Alt + F7 move the window (Note: It is invalid when the window is maximized)
Alt + F8 change the window size (Note: It is invalid when the window is maximized)
Alt + F9 minimized window
Alt + F10 maximize window
Alt + Space open the control menu of the window (click the menu icon in the upper left corner of the window)
Common shortcut keys in applications
(Note: Not Applicable to All Programs) There is no difference between basic and win.
Ctrl + N new window
Ctrl + X cut
Ctrl + C copy
Ctrl + V Paste
Ctrl + Z undo the previous operation
Ctrl + Shift + Z redo the one-step Undo operation
Ctrl + S save
File Browser (Part)
Ctrl + H show hidden files (switch key)
Ctrl + T create tag
Ctrl + W close tag
Ctrl + Page Up previous tag
Ctrl + Page Down next tag
Alt + N switch to the nth tag (N is a number)
Customize shortcuts in Ubuntu
Access "System> Preferences> Keyboard Shortcuts", select the project you want to set, and enter the shortcut key to take effect.
There are also some shortcut keys that are frequently used for terminal commands
Tab = completion
Ctrl + a = start position
Ctrl + e = last position
Ctrl + k = delete all content from here to the end
Ctrl + u = delete all content from here to start
Ctrl + d = Delete the current letter
Ctrl + w = Delete the word from here to the left
Ctrl + y = paste the words deleted by ctrl + u, ctrl + d, ctrl + w
Ctrl + r = testing. I haven't figured it out yet.
Ctrl + l = equivalent to clear
Ctrl + B = move back
Ctrl + f = move forward
Ctrl + p = display the cache command up
Ctrl + n = show down the cache command
Ctrl + d = close the terminal
Shift + top or bottom = terminal scroll up and down
Shift + pgup or pgdown = terminal page turning and scrolling
Ctrl + shift + f = full screen (konsole only)
Ctrl + shift + n = new terminal (terminal and konsole are different)
Ctrl + c = terminate
From: http://www.douban.com/note/79750849/