GUI SVN and Diff client for Linux/Unix

1. I choose RapidSVN + Meld for Ubuntu:
   $ sudo apt-get install rapidsvn
   $ sudo apt-get install meld
2. Start rapidsvn and setting it's diff tool:
   $ rapidsvn -> View -> Preferences... -> Programs -> Diff Tool -> Browse:"/usr/bin/meld", Program arguments: "%1 %2" -> OK.
3. Download SVN trunk:
   Repositary -> Checkout -> ...
4. Reference:
   http://en.wikipedia.org/wiki/Comparison_of_Subversion_clients
   http://en.wikipedia.org/wiki/RapidSVN
   http://en.wikipedia.org/wiki/Comparison_of_file_comparison_tools
   http://en.wikipedia.org/wiki/Meld_(software)