How can I copy large number of files from one Ubuntu machine to another effectively?

I have two Ubuntu machines, one of which has a large number of files.

How can I copy the files from one machine to another effectively? I would like to copy only the delta files and not all the files every time.

Solution 1:

Try using rsync

Guides:

http://www.cyberciti.biz/tips/linux-use-rsync-transfer-mirror-files-directories.html

http://everythinglinux.org/rsync/

http://www.thegeekstuff.com/2010/09/rsync-command-examples/

It can perform differential uploads and downloads (synchronization) of files across the network, transferring only data that has changed. The rsync remote-update protocol allows rsync to transfer just the differences between two sets of files across the network connection.