Keyboard shortcuts of Ubuntu 13.04

Hello friends, today I am going to tell you about some keyboard shortcuts of Ubuntu 13.04. Although its written in Ubuntu documentation but only a few of us bothers about the documentation and read them. So, I am summarizing them here. I collected it from Ubuntu official website.
Just comment here, if any of the below code is not working.

Windows and Workspaces: 

Keyboard Shortcut	Description
Alt + F4	Close current window
Alt + F2	Run a command
Alt + Tab	Switch windows
Alt + Shift + Tab	Reverse Switch window
Alt + Tab + Right Arrow	Switch to next window to the right
Alt + Tab + Left Arrow	Switch to next window to the left
Alt + Tab + Down Arrow	Preview selected window
Alt + `	Switch between windows in selected application
Alt + Shift + `	Reverse switch window in selected application
Super + s	Activate workspace switcher
Super + w	Show all windows in current workspace
CTRL + Alt + Arrows	Switch between workspaces
CTRL + Alt + Shift + Arrows	Move current window to another workspace
CTRL + Alt + Del	Log out
CTRL + Super + D	Hide all windows
CTRL + Alt + L	Lock screen
CTRL + Super + Up Arrow	Maximise current window
Alt + Left mouse drag	Move window
Alt + Middle mouse drag	Resize window
Alt + F7 + Arrows	Move Window
Alt + F8 + Arrows 	Resize Window
CTRL + Alt + T	Launch Terminal

Heads Up Display (HUD):

Keyboard Shortcut	Description
Alt (quick tap)	Opens HUD
Type	Shows list of items to choose from
Arrows	Select result
Esc (or Alt again)	Exit HUD

The Dash:

Keyboard Shortcut	Description
Super (hold)	Show keyboard shortcuts
Super (tap)	Show dash
Super + A	Show Applications lens
Super + F	Show Files lens
Super + M	Show Music lens
Super + V	Show Video lens
Super + C	Show Photos lens
Super + G	Show Gwibber lens
Arrow keys	Change selected item
CTRL + Tab	Toggle through lenses
CTRL + Shift + Tab	Toggler backwards through lenses
Enter	Open selected item
Right click on item	Preview

The Launcher:

Keyboard Shortcut	Description
Alt + F1	Enables keyboard navigation
Super + Tab	Switch between applications
Super + Shift + Tab	Toggle backwards through applications in launcher
Super + (1 to 9)	Select application defined by number
Super + Shift + (1 to 9)	Open new window for application
Super + T	Open recycle bin

Screenshots:

Keyboard Shortcut	Description
Print	Take a screenshot
Alt + Print	Capture current window
Shift + Print	Take screenshot of area of screen
CTRL + Print	Copy screenshot to clipboard
CTRL + Alt + Print	Capture current window to clipboard
CTRL + Shift + Print	Capture screen area to clipboard

Enjoy hacking.

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