poweroff

#!/bin/bash

#  Decription
#  ----------
#  Gracefully closes all running X applications, then powers off the computer.
#  Make sure to avoid conflicts with system `poweroff` is such exists.
#  Useful to avoid issues when calling `poweroff` from console:
#
#  * "The database you are trying to open is locked by another instance of KeePassXC.",
#  * "Well, this is embarrassing. Firefox is having trouble recovering your windows and tabs."
#  * Spotify forgetting current playlist
#  * etc

#  Author: [Dmitry](http://dmi3.net) [Source](https://github.com/dmi3/bin)

#  Requirements
#  ----------
#  1. `sudo apt-get install wmctrl`

setsid bash -c "sleep 3 && systemctl poweroff"&
echo "Shutdown in 3 seconds"
WIN_IDs=$(wmctrl -l | awk '{print $1}')
for i in $WIN_IDs; do wmctrl -ic "$i" || true; done