If you need to backup your SVN repositories, then you can use this bash script to do so:
#!/bin/bash
DATE=`date +"%Y-%m-%d"`
BACKUP_DIR=/home/user/svn/backup/${DATE}
mkdir -p $BACKUP_DIR
for dir in `ls /var/svn/`; do
RES_DIR=/var/svn/$dir;
svnadmin dump $RES_DIR | gzip > "${BACKUP_DIR}/${dir}.dump.gz";
done
This basically dumps every revision from each repository in your server, and gzip’s them and then puts them in /home/user/svn/backup under the current date