(defun gnus-kill (field regexp &optional exe-command all silent)
"If FIELD of an article matches REGEXP, execute COMMAND.
Optional 1st argument COMMAND is default to
(gnus-summary-mark-as-read nil \"X\").
If optional 2nd argument ALL is non-nil, articles marked are also applied to.
If FIELD is an empty string (or nil), entire article body is searched for.
(defun gnus-kill (field regexp &optional exe-command all silent)
"If FIELD of an article matches REGEXP, execute COMMAND.
Optional 1st argument COMMAND is default to
(gnus-summary-mark-as-read nil \"X\").
If optional 2nd argument ALL is non-nil, articles marked are also applied to.
If FIELD is an empty string (or nil), entire article body is searched for.