Linux : Display a permanent text on the desktop

desktopdisplaylinux

I am looking for a way to display a permanent text on the desktop (xfce/gnome but if I found a way on another window manager, I catch).
I was asked to show a version number on the desktop in a permanent way, so I have to display it on opening session, and I have to update it if our software is updated.
How can I do this?

Best Answer

It should be possible to run any Xwindow application in the root window, however a simpler solution would be to use a wallpaper and set up a cron job to update the wallpaper file from a template using a script. You can add text (for example) using the imagemagick toolkit or using the GD extension with PHP.

It's possible to force XFCE to reload the wallpaper.