3.5 rn COMMANDS
Different commands are available to you in rn depending on whether you are already in a newsgroup or reading a specific article. At any point, typing a lowercase h will bring up a list of available commands and some terse instructions for using them. Here are some of them:
After you've just called up rn, or within a newsgroup:
c Marks every article in a newsgroup as read (or "caught up") so that you don't have to see them again. The system will ask you if you are sure. Can be done either when asked if you want to read a particular newsgroup or once in the newsgroup.
g Goes to a newsgroup, in this form:
g news.group
Use this both for going to groups to which you're already
subscribed and subscribing to new groups.
h Provides a list of available commands with terse instructions.
l Gives a list of all available newsgroups.
p Goes to the first previous subscribed newsgroup with un-read articles.