In Windows you could easily kill any task by pressing Ctrl+Alt+Del and bringing up the task manager.
Linux running the GNOME desktop environment (i.e.
Debian, Ubuntu, Linux Mint, etc.)
has a similar tool that can be enabled to run exactly the same way.
This is not useful for users who are used to quick access to a task manager.
To change the controls of Ctrl+Alt+Del in GNOME bring up the keyboard shortcuts preferences.
The keyboard shortcuts preferences will show all of the shortcuts that the GNOME desktop environment can control.
Note: Other program specific or Compiz keyboard shortcuts will not show up here.
You will need to look in those programs for what shortcuts are available.
Adding custom global keyboard shortcuts is as easy as clicking Add.
Click Apply and notice the new keyboard shortcut shows up under Custom Shortcuts but is disabled.
Click where it says “Disabled” and then press the new desired keyboard shortcut Ctrl+Alt+Delete.
punch “Disabled” just as before to set the keyboard shortcut for Kill Window to Ctrl+Delete.
Using System Monitor
To test out the new keyboard shortcuts push Ctrl+Alt+Del.
The System Monitor will open and will have a lot of useful information on the System tab.
The next tab is the Processes tab and is similar to the task manager in Windows.
you might sort by CPU usage, memory usage, process name, etc.
To kill a process, find the name and hit the End Process button.
A confirmation will pop-up and you’re able to easily kill the non-responsive process.
The last tab, File Systems, shows information about local hard disks and partitions.
Particularly useful is the machine, directory, and used information.
Using xkill
The last keyboard shortcut that was set up was for a program called xkill.
This program doesn’t have a user interface or tweaks.
The program should instantly disappear along with any sub-windows the process had opened.
