svnadmin hotcopy — 制作一个版本库的热备份。
This subcommand makes a full “hot” backup of your repository,
including all hooks, configuration files, and, of course, database files.
If you pass the --clean-logs
option,
svnadmin will perform a hot copy of your repository, and
then remove unused Berkeley DB logs from the original repository. You can
run this command at any time and make a safe copy of the repository,
regardless of whether other processes are using the repository.