wmctrl
http://blog.spiralofhope.com/1042/wmctrl-user-documentation.html
window manager에 대한 정보 / 환경
$ wmctrl -m
Name: Mutter(Gala)
Class: N/A
PID: N/A
Window manager’s “showing the desktop” mode: OFF
sudo apt install wmctrl
$ wmctrl –version
1.07
wmctrl -k on 데스크탑
