Adding Files to SVN :
svn add theFileNeedToBeAdded
Check in added Files or modified files :
svn ci theFileModifiedOrAdded -m 'Comment about the modification done'
Check out the files from svn :
svn co -uri http://location.of.checking out files
Check the difference with svn
svn diff fileToBeCheckedWithTheServer
Check the status of files with svn
svn status
Get latest version from SVN
svn up
Adding patched files to code :
patch -p0 < theFileToBePatched