| Shortcut Keys | Description |
| Open Apple + Down | Opens the selected icon. |
| Shift + Click | Select the icon and add it to the set of those selected. |
| Tab | Highlight the next icon inside the folder, in alphabetical order. |
| Shift + Tab | Highlight the previous icon inside the folder, in alphabetical order. |
| Left arrow | Used when viewing by icon to select the icon to the left of the one highlighted. |
| Right arrow | Used when viewing by icon to select icon to the right of the one highlighted. |
| Up arrow | Used to select the icon above the one currently highlighted. |
| Down arrow | Used to select the icon below the one currently highlighted. |
| Open Apple + ? | Mac help |
| Open Apple + E | Eject |
| Open Apple + Shift + Up Arrow | Used to direct the input focus to the desktop level. |
| Open Apple + M | Minimize window |
| Open Apple + N | New finder window |
| Open Apple + Shift + N | New folder |
| Open Apple + W | Close the current window. |
| Open Apple + C | Copy the elected item to the clipboard. |
| Open Apple + X | Cut the selected item. |
| Open Apple + V | Paste item from the clipboard |
| Open Apple + L | Make alias |
| Open Apple + R | Show original item |
| Open Apple + T | Add to favorites |
| Open Apple + O | Open the selected icon. |
| Open Apple + F | Display the find dialog box. |
| Open Apple + G | Repeat the last find operation. |
| Open Apple + Shift + G | Takes a snapshot of the screen and saves it to a PICT file. |
(Please note that not all of the below shortcut keys will work in all versions of Mac OS)
Linux shortcut keys
| Shortcut keys | Description |
| CTRL + B | Moves the cursor backward one character. |
| CTRL + C | Cancels the currently running command. |
| CTRL + D | Logs out of the current session. |
| CTRL + F | Moves the cursor forward one character. |
| CTRL + H | Erase one character. Similar to pressing backspace. |
| CTRL + P | Paste previous line and/or lines. |
| CTRL + S | Stops all output on screen (XOFF). |
| CTRL + Q | Turns all output stopped on screen back on (XON). |
| CTRL + U | Erases the complete line. |
| CTRL + W | Deletes the last word typed in. For example, if you typed ‘mv file1 file2’ this shortcut would delete file2. |
| CTRL + Z | Cancels current operation, moves back a directory and/or takes the current operation and moves it to the background. See bg command for additional information about background. |
Linux Command line shortcut keys
| Shortcut keys | Description |
| ~ | Moves to the user’s home directory. |
| !! | Repeats the line last entered at the shell. |
| !$ | Repeats the last argument for the command last used. |
| reset | Resets the terminal if terminal screen is not displaying correctly. |
| shutdown -h now | Remotely or locally shuts the system down. |
| adduser | Add a user to the system |
| alias | Create an alias |
| chmod | Change access permissions |
| echo | Display message on screen |
| mv | Move or rename files or directories |
| mount | Mount a file system |
| man | Help manual |
| killall | Kill processes by name |
| passwd | Modify a user password |
| su | Substitute user identity |
Remotely or locally shuts the system down.