उबन्टु शर्टकट की

Ctrl + A = Select all
Ctrl + C = Copy the highlighted content to clipboard
Ctrl + V = Paste the clipboard content
Ctrl + N = New (Create a new document, not in terminal)
Ctrl + O = Open a document
Ctrl + S = Save the current document
Ctrl + P = Print the current document
Ctrl + W = Close the close document
Ctrl + Q = Quit the current application

Keyboard shortcuts for GNOME desktop

Ctrl + Alt + F1 = Switch to the first virtual terminal
Ctrl + Alt + F2(F3)(F4)(F5)(F6) = Select the different virtual terminals
Ctrl + Alt + F7 = Restore back to the current terminal session with X
Ctrl + Alt + Backspace = Restart GNOME
Alt + Tab = Switch between open programs
Ctrl + Alt + L = Lock the screen.
Alt + F1 = opens the Applications menu
Alt + F2 = opens the Run Application dialog box.
Alt + F3 = opens the Deskbar Applet
Alt + F4 = closes the current window.
Alt + F5 = unmaximizes the current window.
Alt + F7 = move the current window
Alt + F8 = resizes the current window.
Alt + F9 = minimizes the current window.
Alt + F10 = maximizes the current window.
Alt + Space = opens the window menu.
Ctrl + Alt + + = Switch to next X resolution
Ctrl + Alt + - = Switch to previous X resolution
Ctrl + Alt + Left/Right = move to the next/previous workspace

Keyboard shortcuts for Terminal

Ctrl + A = Move cursor to beginning of line
Ctrl + E = Move cursor to end of line
Ctrl + C = kills the current process.
Ctrl + Z = sends the current process to the background.
Ctrl + D = logs you out.
Ctrl + R = finds the last command matching the entered letters.
Enter a letter, followed by Tab + Tab = lists the available commands beginning with those letters.
Ctrl + U = deletes the current line.
Ctrl + K = deletes the command from the cursor right.
Ctrl + W = deletes the word before the cursor.
Ctrl + L = clears the terminal output
Shift + Ctrl + C = copy the highlighted command to the clipboard.
Shift + Ctrl + V (or Shift + Insert) = pastes the contents of the clipboard.
Alt + F = moves forward one word.
Alt + B = moves backward one word.
Arrow Up/Down = browse command history
Shift + PageUp / PageDown = Scroll terminal output

Keyboard shortcuts for Compiz

Alt + Tab = switch between open windows
Win + Tab = switch between open windows with Shift Switcher or Ring Switcher effect
Win + E = Expo, show all workspace
Ctrl + Alt + Down = Film Effect
Ctrl + Alt + Left mouse button = Rotate Desktop Cube
Alt + Shift + Up = Scale Windows.
Ctrl + Alt + D = Show Desktop
Win + Left mouse button = take screenshot on selected area
Win + Mousewheel = Zoom In/Out
Alt + Mousewheel = Transparent Window
Alt + F8 = Resize Window
Alt + F7 = Move Window
Win + P = Add Helper
F9 = show widget layer
Shift + F9 = show water effects
Win + Shift + Left mouse button = Fire Effects
Win + Shift + C = Clear Fire Effects
Win + Left mouse button = Annotate: Draw
Win + 1 = Start annotation
Win + 3 = End annotation
Win + S = selects windows for grouping
Win + T = Group Windows together
Win + U = Ungroup Windows
Win + Left/Right = Flip Windows

Keyboard shortcut for Nautilus

Shift + Ctrl + N = Create New Folder
Ctrl + T = Delete selected file(s) to trash
Alt + ENTER = Show File/Folder Properties
Ctrl + 1 = Toggle View As Icons
Ctrl + 2 = Toggle View As List
Shift + Right = Open Directory (Only in List View)
Shift + Left = Close Directory (Only in List View)
Ctrl + S = Select Pattern
F2 = Rename File
Ctrl + A = Select all files and folders
Ctrl + W = Close Window
Ctrl + Shift + W = Close All Nautilus Windows
Ctrl + R = Reload Nautilus Window
Alt + Up = Open parent directory
Alt + Left = Back
Alt + Right = Forward.
Alt + Home = go to Home folder
Ctrl + L = go to location bar
F9 = Show sidepane
Ctrl + H = Show Hidden Files
Ctrl + + = Zoom In
Ctrl + - = Zoom Out
Ctrl + 0 = Normal Size

गूगल क्रोम शर्टकट की

Ctrl+N Open a new window
Ctrl+Shift+N Open a new window in incognito mode
Press Ctrl, and click a link Open link in a new tab
Press Shift, and click a link Open link in a new window
Alt+F4 Close current window
Ctrl+T Open a new tab
Ctrl+Shift+T Reopen last tab closed (remembers 10)
Drag link to tab Open link in specified tab
Drag link to space between tabs Open link in a new tab

Ctrl+1 through Ctrl+8 Switch to the tab at the specified position number. The number you press represents a position on the tab strip.
Ctrl+9 Switch to the last tab
Ctrl+Tab or Ctrl+PgDown Switch to the next tab
Ctrl+Shift+Tab or Ctrl+PgUp Switch to the previous tab
Ctrl+W or Ctrl+F4 Close current tab or pop-up
Alt+Home Open your homepage
Ctrl+O, then select file Open a file from your computer


Address bar shortcuts:

Do one of the following actions in the address bar:

Type a search term Perform a search using your default search engine

Type the part of the web address that’s between ‘www.’ and ‘.com’, then press Ctrl+Enter

F6 or Ctrl+L or Alt+D Highlight content in the web address area

Type a web address, then press Alt+Enter Open your web address in a new tab

Shortcuts to open Google Chrome features:

Ctrl+B Toggle bookmarks bar on and off
Ctrl+H View the History page
Ctrl+J View the Downloads page
Shift+Escape View the Task manager

Webpage shortcuts:

Ctrl+P Print your current page
F5 Reload current page
Esc Stop page loading
Ctrl+F5 or Shift+F5 Reload current page, ignoring cached content
Press Alt, and click a link Download link
Ctrl+F Open find-in-page box
Ctrl+G or F3 Find next match for your input in the find-in-page box
Ctrl+Shift+G or Shift+F3 Find previous match for your input in the find-in-page box
Ctrl+U View source
Drag link to bookmarks bar Bookmark the link
Ctrl+D Bookmark your current webpage
Ctrl++ Make text larger
Ctrl+- Make text smaller
Ctrl+0 Return to normal text size

Other

Backspace, or press Alt and the left arrow together Go to the previous page in your browsing history for the tab

Shift+Backspace, or press Alt and the right arrow together Go to the next page in your browsing history for the tab

Ctrl+K or Ctrl+E Places a ‘?’ in the address bar. Type a search term after the ‘?’ to perform a search using your default search engine.

Place your cursor in the address bar, then press Ctrl and the left arrow together Jump to the previous word in the address bar

Place your cursor in the address bar, then press Ctrl and the right arrow together Jump to the next word in the address bar

Place your cursor in the address bar, then press Ctrl+Backspace Delete the previous word in the address bar

Space bar Scroll down the web page.
Home Go to the top of the page
End Go to the bottom of the page.