working perfectly here. Post what you have in post-commit and I'll take a look.
Please confirm the following:-
you have a file named "post-commit" not "post-commit.tmpl"
the file is in the directory ~/svn/repoName/hooks/ <--repoName is your repository name
have you made the file executable? If not then do so
please post what you get when you ssh into your hooks directory and issue the command: