>>-ISPLIBD--+---------+----------------------------------------><
            '-libtype-'   

Invokes the LIBDEF Display Utility. The optional parameter, libtype, identifies a specific LIBDEF library definition to be displayed. All LIBDEF definitions for the current logical screen are displayed if the parameter is omitted, if the parameter is longer than eight characters, or if the parameter specifies ISPPROF as the library name. See z/OS ISPF Services Guide for more information about LIBDEF and the ISPLIBD command.