/.xinitrc file allows changing the window manager we want to use when logging into X from that account. The dot in the file name shows you that the file is a hidden file and doesn't show when you do a normal directory listing. For setting a window manager we have to save a command in this file. The syntax of command is: exec windowmanager.After this, save the file. Next time when you run a startx a new window manager will open and become default. The commands for starting some popular window managers and desktop environments are: -KDE = startkde -Gnome = gnome-session -Blackbox = blackbox -FVWM = fvwm -Window Maker = wmaker -IceWM = icewm