Qualifiers

/ALL
   Deletes all symbols from the specified table. If you do not
   specify either the /LOCAL or the /GLOBAL qualifier, all symbols
   defined at the current command level are deleted. The /ALL
   qualifier is incompatible with the symbol-name parameter.


/GLOBAL
   Deletes the symbol from the global symbol table of the current
   process.


/LOCAL
      /LOCAL (default)

   Deletes the symbol from the local symbol table of the current
   process.


/LOG
      /LOG
      /NOLOG (default)

   Controls whether an informational message listing each symbol
   being deleted is displayed.