How to use Ctrl+Alt+Del to launch Task Manager on Ubuntu?

The “Task Manager” tool displays the performance of a system, i.e., the status of the currently running possess and applications. It is also beneficial to close the unresponsive application, which can help improve system performance. In Ubuntu, the “System Monitor” application performs this task, which looks after all the processes and tells about the hard disk consumption.

It is pre-installed in “Ubuntu” and can be easily accessed through the “Application menu”.However, it can also be launched directly by pressing a “Ctrl+Alt+Del” shortcut key.

This guide enlists the procedure for using the “Ctrl+Alt+Del” to launch Task Manager on Ubuntu.

How to use Ctrl+Alt+Del to launch Task Manager on Ubuntu

To use the “Ctrl+Alt+Del” for launching the task manager on Ubuntu, follow the step-by-step instructions that are described below:

Step 1: Open the Settings

Firstly, navigate to the “Show Application” icons in the dock panel. It generates an “application menu” and a “Search bar”.  Type the “Setting” application in it and click on the shown result:

The “Settings” window will be opened and looks like this:

Step 2: Hit the “Custom Shortcuts” Option

Scroll down the left side panel of the “Settings” window and press the “Keyboard” option. After that, click on “View and Customize Shortcuts” from the “Keyboard Shortcuts” section, as shown in the screenshot:

The “Keyboard Shortcuts” window will pop up. From this window, hit the “Custom Shortcuts” option:

Step 3: Modify the Default Shortcut key

By default, the shortcut key “Ctrl+Alt+Del” is set to “log out” from the system. So, before setting the new “Ctrl+Alt+Del” shortcut key to launch the “Task Manager”, first change it because sometimes a shortcut key executes only a single operation.

To change the shortcut key of logout, hit the “System” section from the “Keyboard Shortcuts” and then the “Log out” option:

Press the “Ctrl+Alt+L”(Or User’s Choice) on the “Set Shortcut” dialogue box:

The “Ctrl+Alt+L” shortcut key has a print on the “Set Shortcut” prompt. Press the “Set” button to set it to “log out” purpose permanently:

The “Log out” shortcut key has been changed Successfully from “Ctrl+Alt+Del” to “Ctrl+Alt+T”, as shown in the image:

Step 4: Set  the “Ctrl+Alt+Del” Shortcut Key

Move back from the “System” section and click on the “Custom Shortcuts” section:

On the “Custom Shortcuts” pop-up window, tap on the green “Add Shortcut” button to add a new “Ctrl+Alt+Del” shortcut key:

It generates an “Add Custom Shortcut” dialogue box containing “Name”, “Command”, and “Shortcut” fields. Type the “Task Manager” in the “Name” field and “gnome-system-monitor” into the “Command” field:

Now click on the “Set Shortcut” field and press the “Ctrl+Alt+Del” new shortcut key onto the “Add Custom Shortcut” prompt:

The new “Ctrl+Alt+Del” will appear in the “Shortcut” field. Press the “Add” option to save the new changes:

As a result, the “Ctrl+Alt+Del” has been set to launch the “Task Manager”:

Step 5: Launch the Task Manager

Close all the tabs and press the newly set “Ctrl+Alt+Del” shortcut key on the “Ubuntu” system. It definitely opens up the “Task Manager”, as shown in the following screenshot:


In Ubuntu, the “Task Manager” application “System Monitor” can be launched using the shortcut key “Ctrl+Alt+Del”. This shortcut key is generally set for logging out of the Ubuntu system. You must change it and then set it by accessing the “Custom Shortcuts” section from the “Keyboard Shortcuts” window. This post has briefly illustrated the procedure to use the “Ctrl+Alt+Del” to launch the task manager application on Ubuntu.