1. A non-transitory medium usable by a computer that incorporates a computer-readable information processing program in which a user entitled to execute a command is limited by an attribute of the command, wherein the information processing program comprising: a first program code that causes the computer to function as a service providing unit which is resident in a memory of the computer and provides a service; and a second program code that causes the computer to function as the service providing unit which, when execution of a command is requested, extracts a name of a user entitled to execute the requested command from command execution user data associating the attribute of the command with the name of the user entitled to execute the command, and executes the command with the extracted user name.