You are installing Oracle Enterprise Linux on a machine and are at the stage of swap filesystem creation. You want to ensure that swap contains twice the amount of RAM available in the system but do…

You are installing Oracle Enterprise Linux on a machine and are at the stage of swap filesystem creation. You want to ensure that swap contains twice the amount of RAM available in the system but do not know the total available memory. You can use the free command but do not have a prompt to execute the command. Which key combination would take you to a command prompt?