- dump the source repos (sandbox)
-bash-3.00$ sudo svnadmin dump /var/svnroot/sandbox > sbdump
...
* Dumped revision 1870.
* Dumped revision 1871.
* Dumped revision 1872.
- filter the specified project from source repos dump file
-bash-3.00$ sudo cat sbdump | svndumpfilter include msmp > msmpdump
...
-bash-3.00$ ls *dump
msmpdump sbdump
- load the project to dest repos with specified parent path
-bash-3.00$ sudo svnadmin load /var/svnroot/svn1 --parent-dir /trunk/src < msmpdump
...