compiz is the window manager used by Unity. Running compiz --replace when Unity is running will start a new instance of the window manager, replacing the old instance.
Lubuntu uses the openbox window manager. So if you want to do is to run a new instance of openbox, replacing the old one, run:
openbox --replace
That's probably what you want.
On the other hand, if you want to replace openboxwith compiz, just run compiz --replace. (If that doesn't work, try killing openbox manually first with killall openbox.)
By the way, you've written compiz --replace with a # character in front of it, as though you're running it from a root shell. That would be wrong. compiz, openbox, and other window managers should be run as the non-root user who is graphically logged in, not as root. Do not use sudo to run compiz or openbox.
compizis the window manager used by Unity. Runningcompiz --replacewhen Unity is running will start a new instance of the window manager, replacing the old instance.Lubuntu uses the
openboxwindow manager. So if you want to do is to run a new instance ofopenbox, replacing the old one, run:That's probably what you want.
On the other hand, if you want to replace
openboxwithcompiz, just runcompiz --replace. (If that doesn't work, try killingopenboxmanually first withkillall openbox.)By the way, you've written
compiz --replacewith a#character in front of it, as though you're running it from a root shell. That would be wrong.compiz,openbox, and other window managers should be run as the non-root user who is graphically logged in, not as root. Do not usesudoto runcompizoropenbox.