...but first, a quick note on what I am doing to make sure this command fits the bill. I have a working copy (this is what Subversion calls the local copy) of a branch of the code on my computer. I have just done a merge to bring in any changes from trunk and I see this:
$svn merge http://blah.blah/blah/blah/trunk/project .
--- Merging r32357 through r32391 into .
G .--- Recording mergeinfo for merge of r32357 through r32391 into '.':U .Summary of conflicts:
Tree conflicts: 2
svn resolve --accept working src/main/java/blah/blah/file.java
svn resolve --accept working src/main/java/blah/blah/blah/otherfile.java
In this case, though, I know that I want to resolve everything it found, so I can also do this:
svn resolve -R --accept working .
Which includes the -R flag for recursive, and uses the . to denote the current directory. This will clear up all the tree conflicts in the file.