So, this time if you have installed linux on your computer, it is very easy to logging in and logout in how your computer. The following means logging in and logout on linux : logging in When you complete installing Linux and booting the system you should see a login prompt on your monitor. When you did your Linux install you should have set a root password. You may have also created a user with a password. Therefore to log in, you will want to type the name of a user or "root" for the login name and enter the appropriate password. If you logged in as a normal user and know the root password and want to use administration commands, you may use the command "su" to become a "super user". Some systems also support the "sudo" command, which allows administrative privileges on a command by command basis. Logging out Use the command "logout" to exit a given session. If you have logged in, then typed "su" to become a superuser...