LIB$SET_LOGICAL

   The Set Logical Name routine requests the calling process's
   command language interpreter (CLI) to define or redefine a
   supervisor-mode process logical name. It provides the same
   function as the DCL command DEFINE.

   Format

     LIB$SET_LOGICAL  logical-name [,value-string] [,table]

                      [,attributes] [,item-list]

     Either the item-list or value-string argument must be
     specified. If both item-list and value-string are specified,
     the value-string argument is ignored.
 

Additional information available:

Returns         Arguments