...or (alternate title): "We don't need no stink'n devilspie"
OK, a bit over dramatic title, I agree. I stumbled upon this yesterday after tweaking parameters for 'Terminal' after having created an image in evolvotron
and setting that as my new desktop wallpaper.
The effect of having your whole desktop as a 'windowless' terminal is a pretty cool thing, and as far as I know, usually requires the likes of devilspie
to implement. I quite by happy accident triggered what is probably actually a bug, that creates this effect.
1 cup of XFCE4 as your DE
1 tbs of xfwm4 w/compositing enabled as your Window Manager
Dash of Terminal as your terminal w/just the right switches and sliders set in preferences
This magical combination causes Terminal to launch sans window decoration, and when the terminal background is set to full transparency, all you see is the command prompt and cursor. The trick to making it fill all, or most, of your desktop space is to launch it with the --geometry option specifying what size
you want the 'window' to be.
For my 1152x864 screen size, I use: Terminal --geometry 110x40+110+55
Note that size (110x40) is relative
to font point size and not absolute
to screen size but that position (+110+55) is absolute
relative to your screen size. If you change font size, the actual window size increases/decreases in size accordingly given the same numeric size
I was already launching Terminal from an upper panel launcher using --geometry option settings to make it fill a pretty big chunk of my desktop space, not covering the vertical row of icons on the left side and enough room left on the right and bottom to use the mouse wheel on the 'desktop' to switch workspaces.