How to move a window to the next monitor on Xfce, Mate and other X Window Managers

Since I use this a lot in my daily work and there were no scripts working properly for me, I made one myself.
It's actually not bound to Xfce but should work on any window manager (haven't tried it, though).

Installation

1. If you don't yet have xdotool, install it:

   Copysudo apt-get install xdotool
   

2. If you don't yet have wmctrl, install it:

   Copysudo apt-get install wmctrl
   

3. Store the attached file in some place that's in your PATH.
   The cool kids use ~/bin/.

4. Make it executable: chmod +x ~/bin/move-to-next-monitor

Trying it

Open up a terminal and run it:

Copymove-to-next-monitor

There should be no errors and the terminal window should have moved one monitor to the right.

Assigning a keyboard shortcut

1. Your window manager has a way to setup global hotkeys somewhere. In Xfce you may open Xfce settings → Keyboard → Keyboard shortcuts
2. Add an entry for move-to-next-monitor and assign a keyboard shortcut to it.
3. It should be active right away, so try it on the settings window. :)

Done!

Props to icyrock.com who had a script that was basically working (not properly on 3 monitors and was lacking some workarounds) and saved me quite some time figuring this all out.