Capturing output

Hi All, I have this crazy problem and I hope it is possible. Part in my script: svnadmin dump -r1:100 --incremental /srv/my_repo > /srv/my_repo.1-100.dump Output: * Dumped revision 1. * Dumped revision 2. * Dumped revision 3. * Dumped revision 4. * Dumped revision 5. * Dumped revision 6. * Dumped revision 7. * Dumped revision 8. * Dumped revision 9. * Dumped revision 10. Now I want to store the output (standard out/error) to a log file for future reference using this: svnadmin dump -r1:100 --incremental /srv/my_repo > /srv/my_repo.1-100.dump | tee /srv/my_repo.1-100.log But seems not to work. Is this doable with bash or python? TIA, Jay