DBG> SHOW SEARCH
  search settings: search for next occurrence, as a string

  DBG> SET SEARCH IDENTIFIER
  DBG> SHOW SEARCH
  search settings: search for next occurrence, as an identifier

  DBG> SET SEARCH ALL
  DBG> SHOW SEARCH
  search settings: search for all occurrences, as an identifier
  DBG>

      In this example, the SET SEARCH IDENTIFIER command directs
      the debugger to search for an occurrence of the string in
      the specified range but display the string only if it is not
      bounded on either side by a character that can be part of an
      identifier in the current language.

      The SET SEARCH ALL command directs the debugger to search for
      (and display) all occurrences of the string in the specified
      range.