process-name

    Specifies the name of a parent process or spawned subprocess to
    which control passes. The process must already exist, be part of
    your current job, and share the same input stream as your current
    process.

    Process names can contain from 1 to 15 alphanumeric characters.
    If a connection to the specified process cannot be made, LATCP
    displays an error message.

    If you specify the /PID qualifier, do not use the process name
    parameter. If you omit the /PID qualifier, you must use the
    process name parameter.

    To display processes, use the DCL SHOW SYSTEM command.