I can see some potential difficulties with this concept but the idea is:
I change a file in Repository A and commit, Repository B has a file that is a link to a file in Repository A, I click update on the file in my working copy for repository B, and i receive the updated file from repository A.
Yes, for directories anyway
See this section on svn externals. The
svn:externalsproperty is set on a versioned directory; its value is typically another versioned directory in a repository (possibly the same one) of your organization. They act in the end something like symbolic links.Update: Good call also by basszero but note that the questioner almost certainly does not have an svn 1.6 repo, so he can’t do it with files.