backup and archive postgresql data older than 6 months

Hi,

Are there scripts which takes backup of postgresql database and archive
data older than 6 months and push it to a remote server using scp or rsync
method and purge/clean the local data on the hard disk at the same time
meaning at any given time we have only six months of postgresql data on the
postgresql database server.

Any help will be highly appreciable.

Regards,

Kaushal