Savon is a program that allows you to store parts of a file system in Subversion. It manages file contents, permissions, owner and group (by name, not by id), and even SELinux security context. Layers allow re-use of files among different hosts.
The command-line tool, savon, tries to follow svn in spirit as closely as possible in expected behaviour, output, ... Of course, there are different commands for the additional functionality, but your knowledge of svn will carry over into your use of savon. (One important exception is the add command, which is non-recursive by default. svn chose to make this recursive, in contrast to CVS, and many a user has made the mistake of adding a whole subtree to subversion when they just wanted one directory added.)
These details are provided for information only. No information here is legal advice and should not be used as such.