Computer Shortcut Keys

Computer Shortcut Keys.

Shortcut keys help provide a simpler and speedier technique for exploring and executing commands in the computer software. Shortcut keys are performed by using the Ctrl key, or Shift key in conjunction with another key, Alt key (on IBM compatible computers), Command (on Macintosh or apple computers,). 

Keep it in mind that when it is written as “Ctrl+S”, then it is telling you to press and hold the Ctrl, and then press the S both at the same time. 

Table of Contents

Some Basic shortcut keys for PC

Shortcut KeysDescription
Alt+FTo File menu options in current program.
Alt+ETo Open Edit options in current program.
Alt+TabTo Switch between open programs.
Ctrl+HomeTo Goes to beginning of the document.
EndTo Goes to end of the current line.
F1To View help information (F1 is used by almost every Windows program to display help).
F2To Rename a selected file.
F5To Refresh the current program window.
Ctrl+DTo Bookmarks the current page in most Internet browsers.
Ctrl+NTo Create a new or blank document in some software, or open a new tab in most Internet browsers.
Ctrl+OTo Open a file in the current software.
Ctrl+ATo Select all text.
Ctrl+BTo Change selected text to be bold.
Ctrl+ITo Change selected text to be in italics.
Ctrl+UTo Change selected text to be underlined.
Ctrl+FTo Open find window for current document or window.
Ctrl+STo Save current document file.
Ctrl+XTo Cut selected item.
Shift+DelTo Cut selected item.
Ctrl+CTo Copy selected item.
Ctrl+InsTo Copy selected item
Ctrl+VTo Paste
Shift+InsTo Paste
Ctrl+YTo Redo last action.
Ctrl+ZTo Undo last action.
Ctrl+KTo Insert hyperlink for selected text.
Ctrl+PTo Print the current page or document.
HomeTo Goes to beginning of current line.
Ctrl+EndTo Goes to end of document.
Shift+HomeTo Highlights from current position to beginning of line.
Shift+EndTo Highlights from current position to end of line.
Ctrl+Left arrowTo Moves one word to the left at a time.
Ctrl+Right arrowTo Moves one word to the right at a time.
Ctrl+EscTo Open the Start menu.
Ctrl+Shift+EscTo Open Windows Task Manager.
Alt+F4To Close the currently active program.
Alt+EnterTo Open the properties for the selected item (file, folder, shortcut, etc.).

Some Shortcut keys for Keyboard

Ctrl+ATo Moves the cursor to the beginning of the line.
Ctrl+BTo Moves the cursor backward one character.
Ctrl+CTo Cancels the currently running command.
Ctrl+DTo Logs out of the current session.
Ctrl+ETo Moves the cursor to the end of the line.
Ctrl+FTo Moves the cursor forward one character.
Ctrl+HTo Erase one character. Similar to pressing backspace.
Ctrl+PTo Paste previous line(s).
Ctrl+RTo Allows you to search for a previously used command or switch.
Ctrl+STo Stops all output on-screen (XOFF).
Ctrl+QTo Turns all output stopped on-screen back on (XON). Also, closes an application window.
Ctrl+UTo Erases the complete line.
Ctrl+WTo Delete the last word typed. For example, if you typed mv file1 file2, this shortcut would delete file2.
Ctrl+ZTo Cancels the current operation, moves back a directory or takes the current operation and moves it to the background. See bg command for additional information about background.
Ctrl+Alt+DTo Minimizes all application windows and shows the desktop.
Ctrl+Alt+LTo Locks the screen.
Ctrl+Alt+TTo Opens a new terminal window.
Ctrl+Alt+Up/Down arrowTo Switches between workspaces (if you are a power user and use workspaces).
Alt+F2To Open the console to run a command (must be a power user).
Arrow Up/DownTo Scroll through previously used commands.

Some shortcut keys for special characters in PC

Shortcut KeysSpecial Character
Alt+0224For à
Alt+0198For Æ
Alt+0231For ç
Alt+0191For ¿
Alt+0232For è
Alt+0236For ì
Alt+0242For ò
Alt+0241For ñ
Alt+0228For ä
Alt+0128For €  (Euro currency)
Alt+0162For ¢  (Cent symbol)
Alt+0163For £  (British Pound currency)
Alt+0165For ¥  (Japanese Yen currency)
Alt+0246For ö
Alt+0252For ü
Alt+0248For ø
Alt+0223For ß
Alt+0176For °  (degree symbol)
Alt+0177For ±  (plus/minus symbol)
Alt+0153For ™
Alt+0169For ©
Alt+0174For ®

Shortcut keys For Microsoft Word

ShortcutDescription
Ctrl+0To Toggles 6pts of spacing above the paragraph.
Ctrl+ATo Select all contents of the page.
Ctrl+BTo Bold highlighted selection.
Ctrl+CTo Copy selected text.
Ctrl+DTo Open the font preferences window.
Ctrl+ETo Aligns the line or selected text to the center of the screen.
Ctrl+FTo Open find box.
Ctrl+ITo Italic highlighted selection.
Ctrl+JTo Aligns the selected text or line to justify the screen.
Ctrl+KTo Insert a hyperlink.
Ctrl+LTo Aligns the line or selected text to the left of the screen.
Ctrl+MTo Indent the paragraph.
Ctrl+NTo Opens new, blank document window.
Ctrl+OTo Opens the dialog box or page for selecting a file to open.
Ctrl+PTo Open the print window.
Ctrl+RTo Aligns the line or selected text to the right of the screen.
Ctrl+STo Save the open document. Like Shift+F12.
Alt+F, ATo Save the document under a different file name.
Alt+XTo Show the Unicode code of a highlighted character.
Ctrl+TTo Create a hanging indent.
Ctrl+UTo Underline the selected text.
Ctrl+VTo Paste.
Ctrl+WTo Close the currently open document.
Ctrl+XTo Cut selected text.
Ctrl+YTo Redo the last action performed.
Ctrl+ZTo Undo last action.
Ctrl+Shift+LTo Quickly create a bullet point.
Ctrl+Shift+FTo Change the font.
Ctrl+Shift+>To Increase selected font +1pts up to 12pt and then increase font +2pts.
Ctrl+]To Increase selected font +1pts.
Ctrl+Shift+<To Decrease selected font -1pts if 12pt or lower; if above 12, decreases font by +2pt.
Ctrl+[To Decrease selected font -1pts.
Ctrl+/+CTo Insert a cent sign (¢).
Ctrl+’+To Insert a character with an accent (acute) mark, where is the character you want. For example, if you wanted an accented é you would use Ctrl+’+e as your shortcut key. To reverse the accent mark, use the opposite accent mark, often found on the tilde key.
Ctrl+Shift+*To View or hide non printing characters.
Ctrl+Left arrowTo Moves one word to the left.
Ctrl+Right arrowTo Moves one word to the right.
Ctrl+Up arrowTo Moves to the beginning of the line or paragraph.
Ctrl+Down arrowTo Moves to the end of the paragraph.
Ctrl+DelTo Deletes word to right of cursor.
Ctrl+BackspaceTo Deletes word to left of cursor.
Ctrl+EndTo Moves the cursor to the end of the document.
Ctrl+HomeTo Moves the cursor to the beginning of the document.
Ctrl+SpacebarTo Reset highlighted text to the default font.
Ctrl+1To Single-space lines.
Ctrl+2To Double-space lines.
Ctrl+5To 1.5-line spacing.
Ctrl+Alt+1To Changes text to heading 1.
Ctrl+Alt+2To Changes text to heading 2.
Ctrl+Alt+3To Changes text to heading 3.
Ctrl+Alt+F2To Open new document.
Ctrl+F1To Open the Task Pane.
Ctrl+F2To Display the print preview.
Ctrl+Shift+>To Increases the selected text size by one font size.
Ctrl+Shift+<Decreases the selected text size by one font size.
Ctrl+Shift+F6To Switches to another open Microsoft Word document.
Ctrl+Shift+F12To Prints the document.
F1To Open help.
F4To Repeat the last action performed (Word 2000+).
F5To Open the Find, Replace, and Go To window in Microsoft Word.
F7To Spellcheck and grammar check selected text or document.
F12To Save As.
Shift+F3To Change the text in Microsoft Word from uppercase to lowercase or a capital letter at the beginning of every word.
Shift+F7To Runs a Thesaurus check on the selected word.
Shift+F12To Save the open document. Like Ctrl+S.
Shift+EnterTo Create a soft break instead of a new paragraph.
Shift+InsertTo Paste.
Shift+Alt+DTo Insert the current date.
Shift+Alt+TTo Insert the current time.
  
Mouse shortcutsDescription
Click, hold, and dragTo Selects text from where you click and hold to the point you drag and let go.
Double-clickTo selects the complete word.
Double-clickDouble-clicking on the left, center, or right of a blank line makes the alignment of the text left, center, or right aligned.
Double-clickDouble-clicking anywhere after text on a line sets a tab stop.
Triple-clickTo Selects the line or paragraph of the text where the mouse is triple-clicked.
Ctrl+Mouse wheelTo Zooms in and out of document.

Shortcut keys For Microsoft Excel

ShortcutDescription
TabTo Move to the next cell, to the right of the currently selected cell.
Ctrl+ATo Select all contents of a worksheet.
Ctrl+BTo Bold all cells in the highlighted section.
Ctrl+CTo Copy all cells in the highlighted section.
Ctrl+DTo Fill down. Fills the cell beneath with the contents of the selected cell. To fill more than one cell, select the source cell and press Ctrl+Shift+Down arrow to select multiple cells. Then press Ctrl+D to fill them with the contents of the original cell.
Ctrl+FTo Search current sheet.
Ctrl+GTo Go to a certain area.
Ctrl+HTo Find and replace.
Ctrl+ITo Puts italics on all cells in the highlighted section.
Ctrl+KTo Inserts a hyperlink.
Ctrl+LTo Opens the Create Table dialog box.
Ctrl+NTo Creates a new workbook.
Ctrl+OTo Opens a workbook.
Ctrl+PTo Print the current sheet.
Ctrl+RTo Fill right. Fills the cell to the right with the contents of the selected cell. To fill more than one cell, select the source cell and press Ctrl+Shift+Right arrow to select multiple cells. Then press Ctrl+R to fill them with the contents of the original cell.
Ctrl+STo Saves the open worksheet.
Ctrl+TTo Open the Create Table dialog box.
Ctrl+UTo Underlines all cells in the highlighted section.
Ctrl+VTo Pastes everything copied onto the clipboard.
Ctrl+WTo Closes the current workbook.
Ctrl+XTo Cuts all cells in the highlighted section.
Ctrl+YTo Repeats the last entry (redo).
Ctrl+ZTo Undo the last action.
Ctrl+1To Changes the format of the selected cells.
Ctrl+2To Bolds all cells in the highlighted section.
Ctrl+3To Puts italics all cells in the highlighted section.
Ctrl+4To Underlines all cells in highlighted section.
Ctrl+5To Puts a strikethrough all cells in the highlighted section.
Ctrl+6To Shows or hides objects.
Ctrl+7To Shows or hides the toolbar.
Ctrl+8To Toggles the outline symbols.
Ctrl+9To Hides rows.
Ctrl+0To Hides columns.
Ctrl+Shift+:To Enters the current time.
Ctrl+;To Enters the current date.
Ctrl+`To Changes between displaying cell values or formulas in the worksheet.
Ctrl+’To Copies a formula from the cell above.
Ctrl+Shift+”To Copies value from cell above.
Ctrl+-To Deletes the selected column or row.
Ctrl+Shift+=To Inserts a new column or row.
Ctrl+Shift+~To Switches between showing Excel formulas or their values in cells.
Ctrl+Shift+@To Applies time formatting.
Ctrl+Shift+!To Applies comma formatting.
Ctrl+Shift+$To Applies currency formatting.
Ctrl+Shift+#To Applies date formatting.
Ctrl+Shift+%To Applies percentage formatting.
Ctrl+Shift+^To Applies exponential formatting.
Ctrl+Shift+*To Selects the current region around the active cell.
Ctrl+Shift+&To Places border around selected cells.
Ctrl+Shift+_To Removes a border.
Ctrl++To Insert.
Ctrl+-To Delete.
Ctrl+Shift+(To Unhide rows.
Ctrl+Shift+)To Unhide columns.
Ctrl+/To Selects the array containing the active cell.
Ctrl+\To Selects the cells with a static value or don’t match the formula in the active cell.
Ctrl+[To Selects all cells referenced by formulas in the highlighted section.
Ctrl+]To Selects cells that contain formulas that reference the active cell.
Ctrl+Shift+{To Selects all cells directly or indirectly referenced by formulas in the highlighted section.
Ctrl+Shift+}To Selects cells which contain formulas that directly or indirectly reference the active cell.
Ctrl+Shift+| (pipe)To Selects the cells within a column that don’t match the formula or static value in the active cell.
Ctrl+EnterTo Fills the selected cells with the current entry.
Ctrl+SpacebarTo Selects the entire column.
Ctrl+Shift+SpacebarTo Selects the entire worksheet.
Ctrl+HomeTo Move to cell A1.
Ctrl+EndTo Move to last cell with text on the worksheet.
Ctrl+TabTo Move between Two or more open Excel files.
Ctrl+Shift+TabTo Activates the previous workbook.
Ctrl+Shift+ATo Inserts argument names into a formula.
Ctrl+Shift+FTo Opens the drop-down menu for fonts.
Ctrl+Shift+OTo Selects all of the cells that contain comments.
Ctrl+Shift+PTo Opens the drop-down menu for point size.
Shift+InsertTo Pastes what is stored on the clipboard.
Shift+PageTo In a single column, highlights all cells above that are selected.
Up 
Shift+PageTo In a single column, highlights all cells above that are selected.
Down 
Shift+HomeTo Highlights all text to the left of the cursor.
Shift+EndTo Highlights all text to the right of the cursor.
Shift+Up ArrowTo Extends the highlighted area up one cell.
Shift+Down ArrowTo Extends the highlighted area down one cell.
Shift+Left ArrowTo Extends the highlighted area left one character.
Shift+Right ArrowTo Extends the highlighted area right one character.
Alt+TabTo Cycles through applications.
Alt+SpacebarTo Opens the system menu.
Alt+BackspaceTo Undo.
Alt+EnterTo While typing text in a cell, pressing Alt+Enter moves to the next line, allowing for multiple lines of text in one cell.
Alt+=To Creates a formula to sum all of the above cells.
Alt+’To Allows formatting on a dialog box.
F1To Opens the help menu.
F2To Edits the selected cell.
F3To After a name is created, F3 will paste names.
F4To Repeats last action. For example, if you changed the color of text in another cell, pressing F4 changes the text in cell to the same color.
F5To Goes to a specific cell. For example, C6.
F6To Move to the next pane.
F7To Spell check selected text or document.
F8To Enters Extend Mode.
F9To Recalculates every workbook.
F10To Activates the menu bar.
F11To Creates a chart from selected data.
F12To Save As option.
Shift+F1To Opens the “What’s This?” window.
Shift+F2To Allows the user to edit a cell comment.
Shift+F3To Opens the Excel formula window.
Shift+F5To Brings up a search box.
Shift+F6To Move to previous pane.
Shift+F8To Add to selection.
Shift+F9To Performs calculate function on active sheet.
Ctrl+F3To Open Excel Name Manager.
Ctrl+F4To Closes current window.
Ctrl+F5To Restores window size.
Ctrl+F6To Next workbook.
Ctrl+Shift+F6To Previous workbook.
Ctrl+F7To Moves the window.
Ctrl+F8To Resizes the window.
Ctrl+F9To Minimize current window.
Ctrl+F10To Maximize currently selected window.
Ctrl+F11To Inserts a macro sheet.
Ctrl+F12To Opens a file.
Ctrl+Shift+F3To Creates names by using those of either row or column labels.
Ctrl+Shift+F6To Moves to the previous worksheet window.
Ctrl+Shift+F12To Prints the current worksheet.
Alt+F1To Inserts a chart.
Alt+F2To Save As option.
Alt+F4To Exits Excel.
Alt+F8To Opens the macro dialog box.
Alt+F11To Opens the Visual Basic editor.
Alt+Shift+F1To Creates a new worksheet.
Alt+Shift+F2To Saves the current worksheet.

Some Shortcut keys for Microsoft FrontPage

ShortcutDescription
Ctrl+CTo Copy selected text.
Ctrl+XTo Cut selected text.
Ctrl+PTo Paste selected text.
Ctrl+KTo Create a hyperlink.
Ctrl+BTo Bold highlighted selection.
Ctrl+ITo Italic highlighted selection.
Ctrl+UTo Underline highlighted selection.
Ctrl+LTo Left align the text.
Ctrl+RTo Right align the text.
Ctrl+ETo Center the text.
Ctrl+/To Turn on or off the display of HTML tags.
Ctrl+STo Save document.
Ctrl+TabTo Switch between open web pages.
Ctrl+InsTo Enter Line break.
Ctrl+EnterTo Move cursor above or below a table.
Ctrl+Shift+BTo Preview in web browser window.
Ctrl+Shift+<To Decrease font size.
Ctrl+Shift+>To Increase font size.
Ctrl+DelTo Deletes word to right of cursor.
Ctrl+BackspaceTo Deletes word to left of cursor.
Alt+mouse double-clickTo View the properties of a selected item. For example, doing this on a table cell would display the properties for that cell.

Some Shortcut keys for Microsoft Outlook

ShortcutDescription
Alt+STo Send the e-mail
Ctrl+EnterTo Send the e-mail you’re composing.
Ctrl+CTo Copy selected text.
Ctrl+XTo Cut selected text.
Ctrl+PTo Open the Print window.
Ctrl+KTo Complete the name or e-mail being typed in the e-mail field if found in the address book.
Ctrl+BTo Bold highlighted selection.
Ctrl+ITo Italic highlighted selection.
Ctrl+MTo Send and receive all e-mail.
Ctrl+QTo Mark selected e-mail as read.
Ctrl+UTo Mark selected e-mail as unread.
 To Underline highlighted text (within an e-mail message).
Ctrl+RTo Reply to an e-mail.
Ctrl+FTo Forward an e-mail.
Ctrl+NTo Create a new e-mail (when in the Mail section).
 To Create a new appointment in your calendar (when in the Calendar section).
Ctrl+YTo Go to folder.
Ctrl+Shift+ATo Create a new appointment in your calendar (from any section of Outlook).
Ctrl+Shift+OTo Open the Outbox.
Ctrl+Shift+ITo Open the Inbox.
Ctrl+Shift+KTo Add a new task.
Ctrl+Shift+CTo Create a new contact.
Ctrl+Shift+JTo Create a new journal entry.
Ctrl+Shift+VTo Move e-mail to folder.

Some Shortcut keys for Google Chrome

Shortcut KeysDescription
Alt+HomeTo Open your homepage.
Alt+Left ArrowTo Back a page.
Alt+Right ArrowTo Forward a page.
F11To Display the current website in full-screen mode. Pressing F11 again will exit this mode.
EscTo Stop loading the page or a download from loading.
Ctrl+(- or +)To Zoom in or out of a page, “-” will zoom out and “+” will zoom in on the page.
Ctrl+1-8To Pressing Ctrl and any number 1 through 8 moves to the corresponding tab in your tab bar.
Ctrl+9To Switch to last tab.
Ctrl+0To Reset browser zoom to default.
Ctrl+EnterTo This combination is used to quickly complete an address. For example, type “allsol” in the address bar and press Ctrl+Enter to get https://allsol.in.
Ctrl+Shift+DeleteTo Open the Clear browsing data window to quickly clear private data.
Ctrl+Shift+BTo Toggle the bookmarks bar between hidden and shown.
Ctrl+ATo Select everything on a page.
Ctrl+DTo Add a bookmark for the page currently opened.
Ctrl+FTo Open the “find” bar to search text on the current page.
Ctrl+OTo Open a file in the browser.
Ctrl+Shift+OTo Open the Bookmark manager.
Ctrl+HTo Open browser history in a new tab.
Ctrl+JTo Display the downloads window.
Ctrl+K or Ctrl+ETo Moves your text cursor to the omnibox so that you can begin typing your search query and perform a Google search.
Ctrl+L, Alt+DTo Move the cursor to the browser address bar and highlight everything in it.
Ctrl+NTo Open New browser window.
Ctrl+Shift+NTo Open a new window in incognito (private) mode.
Ctrl+PTo Print current page or frame.
Ctrl+R or F5To Refresh the current page or frame.
Ctrl+STo Opens the Save As window to save the current page.
Ctrl+TTo Opens a new tab.
Ctrl+UTo View a web page’s source code.
Ctrl+WTo Closes the current tab.
Ctrl+Shift+WTo Closes the currently selected window.
Ctrl+Shift+TTo This combination reopens the last tab you’ve closed. If you’ve closed multiple tabs, you can press this shortcut key multiple times to restore each of the closed tabs.
Ctrl+TabTo Moves through each of the open tabs going to the right.
Ctrl+Shift+TabTo Moves through each of the open tabs going to the left.
Ctrl+Left-clickTo Open a link in a new tab in the background.
Ctrl+Shift+Left-clickTo Open a link in a new tab and switch to the new tab.
Ctrl+PageTo Open the browser tab to the right.
Down 
Ctrl+PageTo Open the browser tab to the left.
Up 
SpacebarTo Moves down a page at a time.
Shift+SpacebarTo Moves up a page at a time.
HomeTo Go to top of page.
EndTo Go to bottom of page.
Alt+Down ArrowTo Display all previous text entered in a text box and available options on a drop-down menu.

Some Shortcut keys for Internet Explorer

Shortcut KeysDescription
AltTo Displays the File/Edit/View menu bar at the top.
Alt+Left arrowTo Back a page.
BackspaceTo Back a page.
Alt+Right arrowTo Forward a page.
F5To Refresh current page, frame, or tab.
F11To Display the current website in fullscreen mode. Pressing F11 again will exit this mode.
EscTo Stop page or download from loading.
Ctrl+(- or +)To Increase or decrease the font size. Pressing ‘-‘ decreases and ‘+’ increases.
Ctrl+EnterTo Quickly complete an address. For example, type allsol.in the address bar and press Ctrl+Enter to get https://allsol.in.
Ctrl+DTo Add a favorite for the page currently opened.
Ctrl+ITo Display available bookmarks.
Ctrl+NTo Open New browser window.
Ctrl+PTo Print current page or frame.
Ctrl+TTo Opens a new tab.
Ctrl+UTo Open debugger to view a web page’s source code.
Ctrl+F4To Closes the currently selected tab.
Ctrl+TabTo Moves through each of the open tabs.
spacebarTo Moves down a page at a time.
Shift+SpacebarTo Moves up a page at a time.
Alt+Down arrowTo Display all previous text entered in a text box or available options on drop-down menu.
Alt+DTo Highlights the text in the address bar.

all

Some Shortcut keys for Mozilla Firefox

Shortcut KeysDescription
F5To Refresh current page, frame, or tab.
F11To Display the current website in fullscreen mode. Pressing F11 again will exit this mode.
EscTo Stop page or download from loading.
spacebarTo Moves down a page at a time.
Alt+HomeTo Open your homepage.
Alt+Down arrowTo Display all previous text entered in a text box and available options on drop-down menu.
Alt+Left arrowTo Back a page.
Alt+Right arrowTo Forward a page.
Ctrl+(- or +)To Increase or decrease the font size, pressing ‘-‘ decreases and ‘+’ increases. Ctrl+0 resets back to default.
Ctrl+ATo Selects all text.
Ctrl+BTo Open the Bookmarks in a sidebar, to view all bookmarks in Firefox.
Ctrl+CTo Copies selected text.
Ctrl+DTo Add a bookmark for the page currently opened.
Ctrl+ETo Move the cursor to the search box.
Ctrl+FTo Access the Find option, to search for any text on the currently open web page.
Ctrl+GTo Advance to the next result of a search performed with Ctrl+F. Press Ctrl+Shift+G to return to a previous search result.
Ctrl+HTo View browsing history in sidebar. To open the history in a window press Ctrl+Shift+H.
Ctrl+ITo Display the Page Info window about the web page currently being viewed.
Ctrl+JTo Display the download window.
Ctrl+KTo Move the cursor to the search box.
Ctrl+LTo Move cursor to address box.
Ctrl+NTo Open New browser window.
Ctrl+OTo Access the Open File window to open a file in Firefox.
Ctrl+PTo Print current page or frame.
Ctrl+TTo Opens a new tab.
Ctrl+UTo View a web page’s source code.
Ctrl+F4 or Ctrl+WTo Closes the currently selected tab.
Ctrl+F5To Refresh the page, ignoring the Internet cache (force full refresh).
Ctrl+EnterTo Quickly complete an address. For example, type allsol.in the address bar and press Ctrl+Enter to get https://allsol.in.
Ctrl+TabTo Moves through each of the open tabs.
Ctrl+Shift+DelTo Open the Clear Data window to quickly clear private data.
Ctrl+Shift+HTo Open the history in a window instead of a sidebar like Ctrl+H.
Ctrl+Shift+JTo Open the Browser Console to troubleshoot an unresponsive script error. See:How to fix an unresponsive script error.
Ctrl+Shift+OTo Open Other Bookmarks in a separate window.
Ctrl+Shift+PTo Open a new private browsing window.
Ctrl+Shift+TTo Undo the close of a tab.
Ctrl+Shift+WTo Close the Firefox browser window. If multiple tabs are open in the Firefox window you’ll get a prompt before Firefox closes.
Shift+SpacebarTo Moves up a page at a time.

Some Shortcut Keys for YouTube

 spacebar or the K keyTo Play and pause a video
0 (zero) key or Home KeyTo Jump to start of a video
 End keyTo Jump to the end of a video or go to the next video
F KeyTo Switch the video to full-screen or theater mode
C KeyTo Turn on or off closed captions and subtitles
up or down arrow keysTo Turn up and down the volume
Skip or jump in the video
Fast forward or rewind 
If you want to fast forward or rewind in increments of five seconds, press the left or right arrow keys. If you need to jump more than five seconds, press the J key to rewind ten seconds or press the L key to fast forward 10 seconds.
Skip to video sections 
Pressing the number keys from 1 to 9 seeks (jumps) to that percentage of the video. In other words, 1 jumps to 10%, 2 jumps to 20%, 3 jumps to 30%, etc.v

Change video playback speed.

To decrease the playback speed of a video, hold down the Shift and press the , (comma) key.
To increase the playback speed of a video, hold down the Shift and press the . (period) key.

Some shortcuts for Command line

Shortcut KeysSpecial Character
 ~To Moves to the user’s home directory.
!!To Repeats the line last entered at the shell.
!$To Repeats the last argument for the command last used. See history command for previous commands.
resetTo Resets the terminal if the terminal screen is not displaying correctly.
shutdown -h nowTo Remotely or locally shuts the system down.

Some Shortcut keys for Apple Macintosh

Open Apple+Shift+GTo Takes a snapshot of the screen and saves it to a PICT file.
Command+ATo Select all text and objects.
Command+BTo Change selected text to boldface.
Command+FTo Open the Find window.
Command+ITo Italicize the selected text.
Command+PTo Open the Print dialog window.
Command+UTo Underline the selected text.
Command+Shift+PTo Open the Page Setup window, to change document parameters.
Command+Shift+control+3To Capture screenshot of current screen and save to the Clipboard