The CI provides a method of setting, displaying, and deleting variables for each session. Variables are defined by the numeric, string, or boolean values assigned to them. Job control words (JCWs), 16-bit numeric variables, are a subset of MPE/iX variables.
Variables are maintained in the session's variable table, a list of currently defined variables and their values that is established and maintained for each session or job. A variable can be accessed by any command issued from the session. Predefined variables are supplied by the CI to access system information easily from a session or job. You can also establish user-defined variables as needed for your session or job.