Library List

A library list is similar in concept to the “PATH” in Unix and MS-DOS. It specifies which libraries are to be searched and the order in which they are searched when the system looks for an object. A library list is identified by the value *LIBL. A default library list is automatically created by OS/400 […]

Create Library and Source Physical Files

Although most system functions can be invoked directly by using CL commands, it is generally easier for novice users to take menu paths to describe the task to perform and then let the system choose for appropriate command. For example, let’s use the menu path to create a library. If you entered a 4 (for […]

Overview of the green screen (5250 Terminal)

The 5250 terminal emulator, or green screen, is your interface when working with an AS/400. Here is its main menu. Here are some general guidelines about working with this screen: If you enter an illegal keystroke, a red XII appears, as shown in the screen above. Press the Ctrl key to clear it. To use function […]

Overview of AS/400 vs PC

If you aren’t familiar with the AS/400, don’t worry. It is a server and, like any server, you can configure it. You simply need to learn the basics of AS/400 syntax and AS/400 system architecture. Understanding AS/400 syntax and jargon The AS/400 operating system is called OS/400. The version of OS/400 is of the format […]