Contributors: Peter J. Kappesser <Peter_Kappesser@promail.com>,
        Mike Castle <mcastle@umr.edu>

You can edit the .newsrc with any text editor. Subscribed groups are
indicated with a ":", unsubscribed with a "!". So, find and delete any
line with a "!" to eliminate unsubscribed newsgroups. From a Unix shell
prompt, the easy way is:

cp .newsrc .newsbak ; grep ":" .newsbak > .newsrc

The only disadvantage I've seen so far is when I subscribe to a
(previously) completely unsubscribed newsgroup, I may see some
crossposted articles I'd seen before. Big deal.

You may need to run trn with the -q option if your news server does not
support an accurate NEWGROUPS command -- i.e. if you get prompted to add
all of those unsubscribed newsgroups. Your sysadmin may need to
reinstall trn to enable this, after which you won't have to run trn with
the -q option, you'll maintain a smaller .newsrc file, and still be
informed of new groups as they're created.

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