This section is from the "Version Control with Subversion" book, by Ben Collins-Sussman, Brian W. Fitzpatrick and C. Michael Pilato. Also available from Amazon: Version Control with Subversion.
svn help — Help!
svn help [SUBCOMMAND...]
This is your best friend when you're using Subversion and this book isn't within reach!
?, h
The options -?, -h and --help have the same effect as using the help subcommand.
-?
-h
--help
Nothing
No
--config-dir DIR