Generalized Automation Language

Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Generalized Automation Language (GAL) is a very high level programming language for MVS based systems such as OS/390 and z/OS. It contains features and constructs that enable the programmer to efficiently intercept systems events and schedule responses. Somewhat akin to BASIC, GAL enables systems programmers and operators to define logic to apply to systems messages as they flow through a multi-system (sysplex) environment. GAL also enables the programmer to define events that have occurred in the past, by intercepting Action Message Retention Facility (AMRF) messages. The language has built-in constructs to obtain the age of a retained message and make decisions about its fate depending on age.