How to get a specific PID #

Keith keith_linux at
Thu Dec 31 05:13:41 UTC 2015

On 12/30/2015 07:07 PM, rikona wrote:
> Tuesday, December 29, 2015, 9:02:30 PM, Keith wrote:
>> On 12/29/2015 02:43 PM, rikona wrote:
>>> Running 12.04 updated. I often have several instances of Kate open in
>>> various desktops, and occasionally one of them becomes unresponsive,
>>> but could be closed without losing something important. [Can move
>>> window, no menus come up, no keys seem to do anything, can't close]
>>> How can I find out which PID # is associated with a particular
>>> instance of Kate [or any other pgm] on a particular desktop, so I can
>>> close just THAT instance? I can see them all in htop, but which is
>>> which?
>> You can use the command: xkill
>> to kill any window on the desktop. It is in the X11-UTILS package.
>> Using ALT-F2 key combination you run it then an 'X' mouse pointer will
>> appear on the desktop. You press the Left mouse button in the window you
>> want to kill.
> Thanks! Does this work at a 'window' level? I ask because I can still
> move the window, but can do nothing inside the window.
> The kate window may be running multiple PIDs in a parent/child
> way. If I do kill the 'parent' kate PID, would that also kill the
> children kate PIDs? If it would, is there a way to keep AND access the
> children, and just kill the parent?

Yes this works at the window level. All instances of kate that are
running will be killed when you use xkill so save your work in other
windows first.

More information about the ubuntu-users mailing list