As far as I'm aware SAS doesn't provide scripts for synchronisation of environments, So it is up to you to build your own.
What OS do your SAS servers run on? Ours run on Windows Server, so we have Powershell scripts which use Robocopy to do daily metadata and SAS data / applications synchronisation. The SAS Prod server processes need to be closed so up-to-date SAS metadata can be copied, then started up again afterwards. Metadata synchronisation is simply done by copying the OS folders where the SAS metadata is stored. This is a lot easier than exporting and importing content.
What tools you use will most likely depend on your OS and its functionality.