mh-book 200605-2.2 (ppc64el binary) in ubuntu jammy

 This is the book written by Jerry Peek and published by O'Reilly &
 Associates, Inc. This book covers MH, nmh, and several interfaces
 to MH including xmh and exmh. MH-E is now documented separately.
 .
 This manual is also visible at http://rand-mh.sourceforge.net/book/