问题:

Things like $log$ and $version$ which add data upon check-in to the file. I'm interested in seeing the other ones and what information they can provide, but I can't get much info unless I know what they are called.

回答1:

Both Subversion and CVS call them Keywords.

Have a look in the SVN manual here (scroll down to svn:keywords) or here for CVS.

回答2:

In SVN these are simply called "properties". You can read about them in the SVN book:

http://svnbook.red-bean.com/en/1.8/svn.advanced.props.html

Err, so, are they called properties or keywords? Oh, I see. In SVN you can associate arbitrary metadata, called "properties", with versioned files; some of the properties you can set are to set up keyword substitution in the files themselves.