How to rsync – one way only!

For example you want to rsync “/var/lib/mysql” from “/somefolder/var/lib/mysql”, use the following syntax ( for local folders):

rsync -avz /somefolder/var/lib/mysql/ /var/lib/mysql

(notice the trailing ‘/’ at the end of the source path and the lack of it at the destination path!)

Syntax when source folder is on a remote location:

rsync -avz -e ssh root@somehost.net:/var/lib/mysql/ /var/lib/mysql