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diff --git a/source/desktop/desktop_environment/index.rst b/source/desktop/desktop_environment/index.rst
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+*********************
+ Desktop Environment
+*********************
+
+Some useful text commands to work on graphical interfaces.
+
+.. only:: html
+
+   .. contents::
+
+Xorg
+====
+
+Resizing windows
+----------------
+
+Resize all of the windows from ``$PROGRAM`` to 800x600::
+
+   xdotool search --name $PROGRAM windowsize %@ 800 600
+
+Resize the active window to 800x600::
+
+   xdotool getactivewindow windowsize 800 600
+
+
+Clipboard
+---------
+
+Get the contents of the X selection on stdout::
+
+   xclip -o
+
+Copy clipboard contents (e.g. from ctrl-C in a graphical program) to the
+primary (which can be basted with a middle mouse click)::
+
+   xclip -o -selection clipboard | xclip -i
+
+
+XDG
+===
+
+Set MIME associations and default apps
+--------------------------------------
+
+``xdg-settings`` is used to set some deskoppish properties and
+expecially the default web browser::
+
+   xdg-settings set default-web-browser xombrero.desktop
+
+other associations can be set using ``xdg-mime``::
+
+   xdg-mime default apvlv.desktop application/pdf
+
+of course the ``.desktop`` can be any available file for any app, placed
+in one of the standard directories, either system-wide or per-user.
+
+Both write to ``~/.local/share/applications/mimeapps.list``.
+
+See Also
+========
+
+* `The old version of this article on my old website
+  <https://www.trueelena.org/computers/howto/managing_x_from_the_command_line.html>`_
+
+..
+   vim: set filetype=rst: 
diff --git a/source/desktop/index.rst b/source/desktop/index.rst
index ed85ece..0ba8afc 100644
--- a/source/desktop/index.rst
+++ b/source/desktop/index.rst
@@ -7,3 +7,4 @@
    :caption: Contents:
 
    command_line_printing/index
+   desktop_environment/index