the software versioning and revision control system “Apache Subversion”

• https://en.wikipedia.org/wiki/Apache_Subversion
• https://en.wikipedia.org/wiki/Comparison_of_Subversion_clients

…

• http://gcc.gnu.org/wiki/SvnTricks
• https://www.mediawiki.org/wiki/Subversion
• http://stackoverflow.com/questions/9104662/get-all-branch-names-in-svn
• http://www.yolinux.com/TUTORIALS/Subversion.html

kdesvn:

• https://en.wikipedia.org/wiki/KDESvn
• http://kdesvn.alwins-world.de/
• http://kdesvn.alwins-world.de/extras/book/
• http://projects.kde.org/kdesvn
• https://quickgit.kde.org/?p=kdesvn.git

https://github.com/tumf/svn-utils: // a couple of command line utilities (Ruby+shell) – worth reading the sources

• svnbr – a Subversion utility in Ruby to operate branches (multi-purpose)
• svn-addignore – in Ruby (rather short)
• svn-addremove – a Shell script (rather short)

https://github.com/monjudoh/svn-utils – just an apparently non-relevant fork from https://github.com/tumf/svn-utils (listed above).