gnus-group-get-new-news). If given a non-numerical prefix, this command will force a total re-reading of the active file(s) from the back end(s).
gnus-goto-next-group-when-activatingsays whether this command is to move point to the next group or not. It is
gnus-group-restart). This saves the .newsrc file(s), closes the connection to all servers, clears up all run-time Gnus variables, and then starts Gnus all over again.
gnus-get-new-news-hook is run just before checking for new news.
gnus-after-getting-new-news-hook is run after checking for new