gnus: Persistent Articles

 
 3.13 Persistent Articles
 ========================
 
 Closely related to article caching, we have “persistent articles”.  In
 fact, it’s just a different way of looking at caching, and much more
 useful in my opinion.
 
    Say you’re reading a newsgroup, and you happen on to some valuable
 gem that you want to keep and treasure forever.  You’d normally just
 save it (using one of the many saving commands) in some file.  The
 problem with that is that it’s just, well, yucky.  Ideally you’d prefer
 just having the article remain in the group where you found it forever;
 untouched by the expiry going on at the news server.
 
    This is what a “persistent article” is—an article that just won’t be
 deleted.  It’s implemented using the normal cache functions, but you use
 two explicit commands for managing persistent articles:
 
 ‘*’
      Make the current article persistent (‘gnus-cache-enter-article’).
 
 ‘M-*’
      Remove the current article from the persistent articles
      (‘gnus-cache-remove-article’).  This will normally delete the
      article.
 
    Both these commands understand the process/prefix convention.
 
    To avoid having all ticked articles (and stuff) entered into the
 cache, you should set ‘gnus-use-cache’ to ‘passive’ if you’re just
 interested in persistent articles:
 
      (setq gnus-use-cache 'passive)