LInux Keyboard shortcuts ( Gnome & KDE )

FOR GNOME

General Shortcut Keys
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Alt + F1 - Opens the Applicantions Menu .
Alt + F2 - Displays the Run Application dialog.
Print Screen - Takes a screenshot.
Alt + Print Screen - Takes a screenshot of the window that has focus.
Ctrl + Alt + right arrow - Switches to the workspace to the right of the current workspace.
Ctrl + Alt + left arrow - Switches to the workspace to the left of the current workspace.
Ctrl + Alt + up arrow - Switches to the workspace above the current workspace.
Ctrl + Alt + down arrow - Switches to the workspace below the current workspace.
Ctrl + Alt + d - Minimizes all windows, and gives focus to the desktop.
F1 - Starts the online help browser, and displays appropriate online Help.

Window Shortcut Keys
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Alt + Tab - Switches between windows. When you use these shortcut keys, a list of windows that you can select is displayed. Release the keys to select a window.
Alt + Esc - Switches between windows in reverse order. Release the keys to select a window.
F10 - Opens the first menu on the left side of the menubar.
Alt + spacebar - Opens the Window Menu .
Arrow keys - Moves the focus between items in a menu.
Return - Chooses a menu item.
Esc - Closes an open menu.
Ctrl + Alt + right arrow - Switches to the workspace to the right of the current workspace.
Ctrl + Alt + left arrow - Switches to the workspace to the left of the current workspace.
Ctrl + Alt + up arrow - Switches to the workspace above the current workspace.
Ctrl + Alt + down arrow - Switches to the workspace below the current workspace.
Ctrl + Alt + d - Minimizes all windows, and gives focus to the desktop.

Panel Shortcut Keys
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Ctrl + Alt + Tab - Switches the focus between the panels and the desktop. When you use these shortcut keys, a list of items that you can select is displayed. Release the keys to select an item.
Ctrl + Alt + Esc - Switches the focus between the panels and the desktop. Release the keys to select an item.
Ctrl + F10 - Opens the popup menu for the selected panel.
Tab - Switches the focus between objects on a panel.
Return - Chooses the selected panel object or menu item.
Shift + F10 - Opens the popup menu for the selected panel object.
Arrow keys - Moves the focus between items in a menu. Moves the focus between interface items in an applet also.
Esc - Closes an open menu.
F10 - Opens the Applications menu from the Menu Bar , if the Menu Bar is in a panel.

Application Shortcut Keys
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Command

Ctrl + N New
Ctrl + X Cut
Ctrl + C Copy
Ctrl + V Paste
Ctrl + Z Undo
Ctrl + S Save
Ctrl + Q Quit

FOR KDE

Alt-F2	Execute Command
Ctrl - B	Add Bookmark
Ctrl-Esc	List of running applications.
Ctrl - W	Close
Alt-Tab	Switch forward among windows
Ctrl - C	Copy
Alt-Shift-Tab	Switch backward among windows
Ctrl - End	End
Ctrl - F1 to F12	Switch to Desktop 1 - 12
Ctrl - F	Find
Shift-Ctrl-F1 to F4	Switch to Desktop 13 to 16
F3	Find Next
Ctrl-Alt-Esc	Kill Window (Click on the window to action the kill.)
Ctrl - F3	Find Prev
Ctrl-Alt-Delete	Logout (To complete logout process, Tab & Enter)
F1	Help
F12	Toggle cursor key mouse emulation
Ctrl - Home	Home
Alt - F1	Popup KDE launch menu
Ctrl - Insert	Insert
Ctrl-Tab	Switch forward one desktop
Ctrl - N	New
Ctrl-Shift-Tab	Switch back one desktop
Ctrl - Down	Next Complete Match
Alt - F4	Window close
Down	Next Item in List
Alt - F3	Window open menu
Ctrl - O	Open
Ctrl - V	Paste
"Windows" Menu	Popup Menu Context
Ctrl - Up	Previous Complete Match
Up	Previous Item in list
Ctrl - P	Print
Page Up	Prior
Ctrl - Q	Quit
Ctrl-Shift-Z	Redo
F5	Reload
Ctrl - R	Replace
Ctrl - S	Save
Ctrl - A	Select All
Ctrl - E	Text Completion
Ctrl - Z	Undo
Shift - F1	What's this
Ctrl - Plus (+)	Zoom In
Ctrl - Minus (-)	Zoom Out