For Windows users it’s a fairly common need to close a program that’s not responding.  The Windows task manager can be accessed by right-clicking on the taskbar at the bottom of the Windows desktop. When I’m using the Linux GUI, it happens less frequently, but today a program I was using froze and it covered one of the two computer monitors.  No matter what I did it wouldn’t close and I couldn’t continue work until it was closed. I knew there was an administrative program to do this in the Linux GUI and I searched the panel along the bottom for it.  It’s called system Monitor and once I started it, four tabs popped up: System, Processes, Resources and File Systems. Under the Processes tab I found the unresponsive program and right-clicked on it and clicked Kill to end it. There are other ways to kill a Linux program in the command or terminal mode.  To do the same thing in the command mode I just did in the GUI start with opening a terminal window.  Then use the “top” command to see all processes and find the PID (process id  number) of the unresponsive process. It may be from 1 to 5 digits. Then type kill xxxx and the process will end even if it’s running in the GUI.


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