gpm
gpm - a cut and paste utility and mouse server for virtual consoles
Command manuals for ui
startx
startx - initialize an X session
xauth
xauth - X authority file utility
xhost
xhost - server access control program for X
xinit
xinit - X Window System initializer
xorg
Xorg - X11R7 X server
xrandr
xrandr - primitive command line interface to RandR extension
xset
xset - user preference utility for X