Rsync

• some options

1. -x one filesystem
2. -X xattr
3. -z compress
4. -H preserve hard links
5. -c checksum
6. --delete remove deleted files from destination
7. --delete-excluded

• sync a directory, deleting deleted files from destination

rsync --progress --delete -avP srv::home /mnt/mirror/home/

• Specify a port for the ssh connection:

rsync --rsh='ssh -p2222' <sourcefile> user@host:/destination/directory

• script from http://blog.interlinked.org/tutorials/rsync_time_machine.html

#!/bin/sh

date=`date "+%Y-%m-%dT%H_%M_%S"`
HOME=/home/user/

rsync -azP \
  --delete \
  --delete-excluded \
  --exclude-from=$HOME/.rsync/exclude \
  --link-dest=../current \
  $HOME user@backupserver:Backups/incomplete_back-$date \
  && ssh user@backupserver \
  "mv Backups/incomplete_back-$date Backups/back-$date \
  && rm -f Backups/current \
  && ln -s back-$date Backups/current"