Copyright © 2020-2021,2022 by Thomas E. Dickey

RCS-BLAME – comments and code


Here is the rcs-blame program written by Michael Chapman.


According to the change-log, Michael Chapman wrote blame in 2004, making minor fixes in 2006. This was on SourceForge; however the project page went away some time in 2018.

I happened to notice this program because I was looking for programs to compare with rcshist. Debian had a package; I installed it on my Debian 6 in 2012.

I noticed that the project page was defunct because it broke the FreeBSD port. Not only the SourceForge page was defunct, but the Internet Archive had no copies of the source. I located the source on


Like the rcshist tool, this is used for analyzing changes using the RCS history of a file:


See the changelog for details:

As part of maintenance,