#8 How to find which process is behind a linux windows

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How to find which process is running behind a windows ?

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painting made by Legowelt

First get PID of the window with xprop - property displayer for X

`xprop _NET_WM_PID | sed 's/_NET_WM_PID(CARDINAL) = //'`

Then use this command as parameter of "ps -q" :

# ps eaux -q `xprop _NET_WM_PID | sed 's/_NET_WM_PID(CARDINAL) = //'`


USER         PID   %CPU %MEM    VSZ   RSS TTY      STAT START   TIME COMMAND
nafofella    4100  0.0  0.1 640560 61180 ?        Sl   09:17   0:07 xfce4-terminal LANGUAGE=en_US USER=nafofella LC_TIME=en_US.UTF-8