How to run a SVN Server on Unix? (The Simple Way)

This is a little tip to set up SVN server on Mac.
There is no authentication and authorization.

macde-macbook:/ mac$ svnserve -help
usage: svnserve [-d | -i | -t | -X] [options]

Valid options:
  -d [--daemon]            : daemon mode
  -i [--inetd]             : inetd mode
  -t [--tunnel]            : tunnel mode
  -X [--listen-once]       : listen-once mode (useful for debugging)
  -r [--root] ARG          : root of directory to serve
  -R [--read-only]         : force read only, overriding repository config file
  --config-file ARG        : read configuration from file ARG
  --listen-port ARG        : listen port
                             [mode: daemon, listen-once]
  --listen-host ARG        : listen hostname or IP address
                             [mode: daemon, listen-once]
  -T [--threads]           : use threads instead of fork [mode: daemon]
  --foreground             : run in foreground (useful for debugging)
                             [mode: daemon]
  --log-file ARG           : svnserve log file
  --pid-file ARG           : write server process ID to file ARG
                             [mode: daemon, listen-once]
  --tunnel-user ARG        : tunnel username (default is current uid's name)
                             [mode: tunnel]
  -h [--help]              : display this help
  --version                : show program version information

-r [--root] is used to specified the root directory of your SVN server. For an example, svnserve -d -r  /Users/mac/Dropbox/Repositories/ and you can now connect the server with svn://localhost/III_MIT.