New answers tagged mate
I don't have a MATE environment to test on but in general, this type of thing can be set using gsettings. Try this: gsettings set org.mate.panel.toplevel:/org/mate/panel/toplevels/bottom/ size 45 That should set the value you want. For more details, see http://wiki.mate-desktop.org/docs:gsettings.
You can use zenity (GTK+ dialog display): zenity --warning --text="Warning text" --title="Warning title" Change --warning to --error or --info for different window versions. And as always: man zenity is your friend.
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