"There are literally dozens of window managers that you can use
with your favorite desktop environment to get a beautiful and
appealing desktop. If you want to fine-tune your window manager,
here are two programs that can help you control everything from
application window size to pinning an application to all workspaces
to fixing a position for your application windows to resizing
desktops. One, wmctrl, works with any window managers that adheres
to the Extended Window Manager Hints (EWMH), while Devil's Pie is a
window-matching utility, which means it can configure application
windows based on defined rules.
"wmctrl is a command-line utility that can be used to manipulate
or control various aspects of application windows and the desktop
environment. Fedora and Ubuntu users can use yum or apt-get
respectively to install wmctrl on their machines, or you can grab
the compressed tarball from the software's Web site..."