If you want to install cpanel into your account then just do the following steps
1. cd /home — This will opens your directory /home.
2. wget -N http://layer1.cpanel.net/latest — By this command you will able to fetches the latest installation file from the cPanel servers.
3. sh latest — This command will runs the installation process. Now wait for cpanel to install into your server. After completion of installation run the following command.
4. /usr/local/cpanel/cpkeyclt — This command will activates your license after installation. If you haven't any license then you can get a 15 days trial license from cpanel. Register yourself here