Command_Parameters

element-expression

   Specifies one or more elements whose reservations are to be
   canceled. An element expression can be an element name, a group
   name, a wildcard expression, or a list of these separated by
   commas.

remark

   Specifies a character string to be logged in the history file
   with this command, usually used to explain why the command was
   entered. The remark is enclosed in quotation marks. If no remark
   was entered, a null remark ("") is logged.