In no particular order, a list of SVN Commands that I use most often. Note that these are command line instructions, if you need a GUI all the following are available in Tortoise.
|svn info||Shows which repository you are working in, and details about who committed last|
|svn st||Status of your current working copy|
|svn up||Update your working copy to match any changes in the repository. Your local changes are not affected.|
|svn commit||commit your changes to the repository|