Here is a list of the documentation for trn that I have found useful:

1. We start with the trn man page - while quite large, it has a lot
of useful info.  There are also smaller man pages for Pnews, Rnmail,
newsetup, and newsgroups.  I don't know if they are up to date with
relationship to things like FAST_PNEWS, etc.

2. There are also 2 text files that folk find useful: NEW and HINTS.TRN.
These detail the changes in trn as well as a set of hints on things
that one can do with it. These have both been incorporated into this
FAQ, under Subjects OLVW and CWHT in Part 1, and OVTC in Part 2.

3. There is the intro to trn document written by Jon Bell
<jtbell@presby.edu> mentioned above. This gives one a gentle
introduction to the use of the command to the first time user.

There is also an html version of Version 3.3 at
<URL:http://www.wimsey.com/wimsey/trnint-3.3.html> or
<URL:http://ocf.berkeley.edu/help/usenet/trnint-3.3.html>

It is also available on
<URL:gopher://cs1.presby.edu/11/net-resources/trn-intro>.

4. There is the KILL file FAQ - killfile-faq - found at places like:
<URL:gopher://depot.cis.ksu.edu/00/Frequently%20Asked%20Questions%20%28FAQs%29/killfile-faq>
or
<URL:http://www.cis.ohio-state.edu/hypertext/faq/usenet/killfile-faq/faq.html>

5. Of course there is strn - the scoring/scanning/super trn research
project. See Subject: OSTR in Part 2 of this FAQ.

Some parts © 2009 Advameg, Inc.