Linux lock screen shortcut

Ubuntu Documentation

This page provides an overview of keyboard shortcuts that can help you use your desktop and applications more efficiently. If you cannot use a mouse or pointing device at all, see Keyboard navigation for more information on navigating user interfaces with only the keyboard.

Getting around the desktop

Switch between the Activities overview and desktop. In the overview, start typing to instantly search your applications, contacts, and documents.

Pop up command window (for quickly running commands).

Use the arrow keys to quickly access previously run commands.

Quickly switch between windows . Hold down Shift for reverse order.

Switch between windows from the same application, or from the selected application after Super + Tab .

This shortcut uses ` on US keyboards, where the ` key is above Tab . On all other keyboards, the shortcut is Super plus the key above Tab .

Switch between windows in the current workspace. Hold down Shift for reverse order.

Give keyboard focus to the top bar. In the Activities overview, switch keyboard focus between the top bar, dash, windows overview, applications list, and search field. Use the arrow keys to navigate.

Show the list of applications.

Super + Page Down

Shift + Super + Page Up

Shift + Super + Page Down

Shift + Super + в†ђ

Move the current window one monitor to the left.

Shift + Super + в†’

Move the current window one monitor to the right.

Ctrl + Alt + Delete

Show the notification list . Press Super + V again or Esc to close.

Common editing shortcuts

Select all text or items in a list.

Cut (remove) selected text or items and place it on the clipboard.

Copy selected text or items to the clipboard.

Paste the contents of the clipboard.

Undo the last action.

Capturing from the screen

Shift + Prnt Scrn

Take a screenshot of an area of the screen. The pointer changes to a crosshair. Click and drag to select an area.

Ctrl + Alt + Shift + R

More Information

See Also

• Keyboard navigation — Use applications and the desktop without a mouse.
• Set keyboard shortcuts — Define or change keyboard shortcuts in Keyboard settings.
• What is the Menu key? — The Menu key launches a context menu with the keyboard rather than with a right-click.
• What is the Super key? — The Super key opens the Activities overview. You can usually find it next to the Alt key on your keyboard.

You can choose the displayed language by adding a language suffix to the web address so it ends with e.g. .html.en or .html.de.
If the web address has no language suffix, the preferred language specified in your web browser’s settings is used. For your convenience:
[ Change to English Language | Change to Browser’s Preferred Language ]

The material in this document is available under a free license, see Legal for details.
For information on contributing see the Ubuntu Documentation Team wiki page. To report errors in this documentation, file a bug.

Источник

Three ways to lock your Ubuntu screen

When you have to take a break from work but do not want to end your current session, locking your computer screen is the way out. You can, of course, shut down your system and start it again when you are back, but that means you have to save all your work and open all in the same state when you need to. Why opt for this second option when your system allows you to temporarily lock your system so that unauthorized people can not access it.

In this article, we will explain three methods to lock your Ubuntu screen; through the UI, through the keyboard shortcut, and through the command line.

We have run the commands and procedures mentioned in this article on a Ubuntu 18.04 LTS system.

Method 1: Through the Settings Panel

The UI based method to lock your Ubuntu screen is through the Settings Panel that can be accessed from the top bar of your Ubuntu desktop.

Click on the downward arrow located at the top right corner of your Ubuntu screen. This is the panel that will appear:

This panel gives you quick graphical access to many configurable system settings. You can lock your computer screen through the Lock icon, which by default is the second last icon located at the bottom on Ubuntu 18.04. As soon as you click on this icon, your computer screen will be locked.

Method 2: Through keyboard shortcut

All Ubuntu systems come with some predefined keyboard shortcuts that you can utilize in order to perform some basic system functions. Since screen locking is also a frequent operation, there is a shortcut for that too. In Ubuntu 18.04, you can use the Super+L shortcut to lock your computer screen. The Super key in the Windows button on your keyboard.

In previous versions of Ubuntu, you could use the Ctrl+Alt+L shortcut for this purpose.

You can easily view all the keyboard shortcuts from the system Settings utility.

The simplest way to access these settings is through the system Dash or the application launcher search bar as follows:

Enter relevant keywords to access keyboard shortcuts in this bar and then click the appropriate search result. Advertisement

This will open the Settings>Devices>Keyboard view as follows:

Here you can view the list of all the predefined shortcuts, edit one by clicking on it, and also create new custom shortcuts for your ease of use.

Method 3: Through the command line

There is a utility called Gnome Screensaver that lets you lock your Ubuntu screen through the command line.

Open your Ubuntu command line, the Terminal, either through the application launcher search or the Ctrl+Alt+T shortcut.

Then enter the following command as sudo in order to install the Gnome Screensaver utility:

Please note that only an authorized user can add/remove, and configure software on Ubuntu. Enter the password for sudo and the software will be installed on your system.

You can then use the following command in order to lock your Ubuntu screen:

These were the ways through which you can ensure the security of your system while you are away by locking your Ubuntu screen.

Karim Buzdar

About the Author: Karim Buzdar holds a degree in telecommunication engineering and holds several sysadmin certifications. As an IT engineer and technical author, he writes for various web sites. You can reach Karim on LinkedIn

Источник

13 Keyboard Shortcuts Every Ubuntu User Should Know

Last updated September 2, 2021 By Abhishek Prakash 107 Comments

Knowing keyboard shortcuts increase your productivity. Here are some useful Ubuntu shortcut keys that will help you use Ubuntu like a pro.

You can use an operating system with the combination of keyboard and mouse but using the keyboard shortcuts saves your time.

Note: The keyboard shortcuts mentioned in the list is intended for Ubuntu 18.04 GNOME edition. Usually, most of them (if not all) should work on other Ubuntu versions as well, but I cannot vouch for it.

Useful Ubuntu keyboard shortcuts

Let’s have a look at some of the must know keyboard shortcut for Ubuntu GNOME. I have not included universal keyboard shortcuts like Ctrl+C (copy), Ctrl+V (paste) or Ctrl+S (save).

Note: Super key in Linux refers to the key with Windows logo. I have used capital letters in the shortcuts but it doesn’t mean you have to press the shift key. For example, T means ‘t’ key only, not Shift+t.

You can also watch a video of these Ubuntu shortcuts in action. And if you like the video, subscribe to our YouTube channel for more Ubuntu and Linux related videos.

1. Super key: Opens Activities search

If you have to use just one keyboard shortcut on Ubuntu, this has to be the one.

You want to open an application? Press the super key and search for the application. If the application is not installed, it will even suggest applications from software center.

You want to see the running applications? Press super key and it will show you all the running GUI applications.

You want to use workspaces? Simply press the super key and you can see the workspaces option on the right-hand side.

2. Ctrl+Alt+T: Ubuntu terminal shortcut

You want to open a new terminal in Ubuntu? Ctrl+Alt+T is the shortcut to open terminal in Ubuntu. This is my favorite keyboard shortcut in Ubuntu. I even mention it in various tutorials on It’s FOSS when it involves opening a terminal.

3. Super+L or Ctrl+Alt+L: Locks the screen

Locking screen when you are not at your desk is one of the most basic security tips. Instead of going to the top right corner and then choosing the lock screen option, you can simply use the Super+L key combination.

Some systems also use Ctrl+Alt+L keys for locking the screen.

4. Super+D or Ctrl+Alt+D: Show desktop

Pressing Super+D minimizes all running application windows and shows the desktop.

Pressing Super+D again will open all the running applications windows as it was previously.

You may also use Ctrl+Alt+D for this purpose.

5. Super+A: Shows the application menu

You can open the application menu in Ubuntu 18.04 GNOME by clicking on the 9 dots on the left bottom of the screen. However, a quicker way would be to use Super+A key combination.

It will show the application menu where you can see the installed applications on your systems and can also search for them.

You can use Esc key to move out of the application menu screen.

6. Super+Tab or Alt+Tab: Switch between running applications

If you have more than one applications running, you can switch between the applications using the Super+Tab or Alt+Tab key combinations.

Keep holding the super key and press tab and you’ll the application switcher appearing . While holding the super key, keep on tapping the tab key to select between applications. When you are at the desired application, release both super and tab keys.

By default, the application switcher moves from left to right. If you want to move from right to left, use the Super+Shift+Tab key combination.

You can also use Alt key instead of Super here.

Tip: If there are multiple instances of an application, you can switch between those instances by using Super+` key combination.

7. Super+Arrow keys: Snap windows

This is available in Windows as well. While using an application, press Super and left arrow key and the application will go to the left edge of the screen, taking half of the screen.

Similarly, pressing Super and right arrow keys will move the application to the right edge.

Super and up arrow keys will maximize the application window and super and down arrow will bring the application back to its usual self.

8. Super+M: Toggle notification tray

GNOME has a notification tray where you can see notifications for various system and application activities. You also have the calendar here.

With Super+M key combination, you can open this notification area. If you press these keys again, an opened notification tray will be closed.

You can also use Super+V for toggling the notification tray.

9. Super+Space: Change input keyboard (for multilingual setup)

If you are multilingual, perhaps you have more than one keyboards installed on your system. For example, I use Hindi on Ubuntu along with English and I have Hindi ( Devanagari ) keyboard installed along with the default English one.

If you also use a multilingual setup, you can quickly change the input keyboard with the Super+Space shortcut.

10. Alt+F2: Run console

This is for power users. If you want to run a quick command, instead of opening a terminal and running the command there, you can use Alt+F2 to run the console.

This is particularly helpful when you have to use applications that can only be run from the terminal.

11. Ctrl+Q: Close an application window

If you have an application running, you can close the application window using the Ctrl+Q key combination. You can also use Ctrl+W for this purpose.

Alt+F4 is more ‘universal’ shortcut for closing an application window.

It not work on a few applications such as the default terminal in Ubuntu.

12. Ctrl+Alt+arrow: Move between workspaces

If you are one of the power users who use workspaces, you can use the Ctrl+Alt+Up arrow and Ctrl+Alt+Down arrow keys to switch between the workspaces.

13. Ctrl+Alt+Del: Log out

No! Like Windows, the famous combination of Ctrl+Alt+Del won’t bring task manager in Ubuntu (unless you use custom keyboard shortcuts for it).

In the normal GNOME desktop environment, you can bring the power off menu using the Ctrl+Alt+Del keys but Ubuntu doesn’t always follow the norms. With Ctrl+Alt+Del keys, you logout from Ubuntu.

Use custom keyboard shortcuts in Ubuntu

You are not limited to the default keyboard shortcuts. You can create your own custom keyboard shortcuts as you like.

Go to Settings->Devices->Keyboard. You’ll see all the keyboard shortcuts here for your system. Scroll down to the bottom and you’ll see the Custom Shortcuts option.

You have to provide an easy-to-recognize name of the shortcut, the command that will be run when the key combinations are used and of course the keys you are going to use for the shortcut.

What are your favorite keyboard shortcuts in Ubuntu?

There is no end to shortcuts. If you want, you can have a look at all the possible GNOME shortcuts here and see if there are some more shortcuts you would like to use.

If you use Linux terminal often, you should also check out these Linux command tips to save your time.

You can, and you should also learn keyboard shortcuts for the applications you use most of the time. For example, I use Kazam for screen recording, and the keyboard shortcuts help me a lot in pausing and resuming the recording.

What are your favorite Ubuntu shortcuts that you cannot live without?

Like what you read? Please share it with others.

Источник